LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 LMP2231 Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs Check for Samples: LMP2231 FEATURES 1 (For VS = 5V, TA = 25C, Typical Unless Otherwise Noted) 23 * * * * * * * * * * * * * Supply Current 10 A Operating Voltage Range 1.6V to 5.5V TCVOS (LMP2231A) 0.4 V/C (max) TCVOS (LMP2231B) 2.5V/C (max) VOS 150 V (max) Input Bias Current 20 fA PSRR 120 dB CMRR 97 dB Open Loop Gain 120 dB Gain Bandwidth Product 130 kHz Slew Rate 58 V/ms Input Voltage Noise, f = 1 kHz 60 nV/Hz Temperature Range -40C to 125C APPLICATIONS * * * * * Precision Instrumentation Amplifiers Battery Powered Medical Instrumentation High Impedance Sensors Strain Gauge Bridge Amplifier Thermocouple Amplifiers DESCRIPTION The LMP2231 is a single micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 16 W extend the battery life in portable battery operated systems. The LMP2231 is part of the LMPTM precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications. The LMP2231 has a maximum offset of 150 V and maximum offset voltage drift of only 0.4 V/C along with low bias current of only 20 fA. These precise specifications make the LMP2231 a great choice for maintaining system accuracy and long term stability. The LMP2231 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2231 is ideal for use in single supply applications with ground sensing. The LMP2231 is offered in 5-Pin SOT-23 and 8-pin SOIC packages. The dual and quad versions of this product are also available. The dual, LMP2232 is offered in 8-pin SOIC and VSSOP. The quad, LMP2234 is offered in 14-pin SOIC and TSSOP. 1 2 3 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. LMP is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2008-2013, Texas Instruments Incorporated LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com Typical Application + + V V 3 LMP2231 + 2 6 LM4140A 1 PF 1,4,7,8 V + 0.1 PF V + + 1/2 LMP2232 - R+'R 10 k: 12 k: R + - V VA IN LMP2231 1 k: R 10 PF 40 k: + ADC121S021 R+'R + V - 12 k: 1/2 LMP2232 + GND 10 k: 40 k: Figure 1. Strain Gauge Bridge Amplifier These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) ESD Tolerance (3) Human Body Model 2000V Machine Model 100V Differential Input Voltage 300 mV Supply Voltage (VS = V+ - V-) 6V Voltage on Input/Output Pins V+ + 0.3V, V- - 0.3V Storage Temperature Range -65C to 150C Junction Temperature (4) 150C For soldering specifications: see product folder at www.ti.com and http://www.ti.com/lit/SNOA549. (1) (2) (3) (4) 2 Absolute Maximum Ratings indicate limits beyond which damage may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and test conditions, see the Electrical Characteristics. If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications. Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine Model, applicable std. JESD22-A115-A (ESD MM std. of JEDEC)Field-Induced Charge-Device Model, applicable std. JESD22-C101-C (ESD FICDM std. of JEDEC). The maximum power dissipation is a function of TJ(MAX), JA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) - TA)/ JA. All numbers apply for packages soldered directly onto a PC Board. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Operating Ratings (1) Operating Temperature Range (2) -40C to 125C - + Supply Voltage (VS = V - V ) Package Thermal Resistance (JA) (1) (2) 1.6V to 5.5V (2) 5-Pin SOT-23 160.6 C/W 8-Pin SOIC 116.2 C/W Absolute Maximum Ratings indicate limits beyond which damage may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and test conditions, see the Electrical Characteristics. The maximum power dissipation is a function of TJ(MAX), JA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) - TA)/ JA. All numbers apply for packages soldered directly onto a PC Board. 5V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 5V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units 10 150 230 V LMP2231A 0.3 0.4 V/C LMP2231B 0.3 2.5 0.02 1 50 Parameter VOS Input Offset Voltage TCVOS Input Offset Voltage Drift Conditions Min (2) IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V VCM 4V 81 80 97 PSRR Power Supply Rejection Ratio 1.6V V+ 5.5V V- = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Range CMRR 80 dB CMRR 79 dB -0.2 -0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 4.7V RL = 10 k to V+/2 110 108 VO Output Swing High RL = 10 k to V+/2 VIN(diff) = 100 mV 17 50 50 Output Swing Low RL = 10 k to V+/2 VIN(diff) = -100 mV 17 50 50 IO IS (1) (2) (3) (4) Output Current (4) pA 5 dB dB 4.2 4.2 V 120 Sourcing, VO to V- VIN(diff) = 100 mV 27 19 30 Sinking, VO to V+ VIN(diff) = -100 mV 17 12 22 Supply Current fA 10 dB mV from either rail mA 16 18 A Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. The short circuit test is a momentary open loop test. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 3 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com 5V AC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 5V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 k SR Slew Rate AV = +1 Min (2) Typ (3) Max (2) 130 Falling Edge 33 32 58 Rising Edge 33 32 48 Units kHz V/ms m Phase Margin CL = 20 pF, RL = 10 k 78 Gm Gain Margin CL = 20 pF, RL = 10 k 27 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/Hz deg Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.3 VPP in Input-Referred Current Noise f = 1 kHz 10 fA/Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 k 0.002 % (1) (2) (3) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. 3.3V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 3.3V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units 10 160 250 V LMP2231A 0.3 0.4 V/C LMP2231B 0.3 2.5 0.02 1 50 Parameter Conditions Min (2) VOS Input Offset Voltage TCVOS Input Offset Voltage Drift IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V VCM 2.3V 79 77 92 PSRR Power Supply Rejection Ratio 1.6V V+ 5.5V V- = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Range CMRR 78 dB CMRR 77 dB -0.2 -0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 3V RL = 10 k to V+/2 108 107 VO (1) (2) (3) 4 5 + Output Swing High RL = 10 k to V /2 VIN(diff) = 100 mV Output Swing Low RL = 10 k to V+/2 VIN(diff) = -100 mV fA dB dB 2.5 2.5 120 14 14 pA V dB 50 50 50 50 mV from either rail Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 3.3V DC Electrical Characteristics(1) (continued) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 3.3V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol IO Output Current IS (4) Conditions Min (2) Typ (3) - Sourcing, VO to V VIN(diff) = 100 mV 11 8 14 Sinking, VO to V+ VIN(diff) = -100 mV 8 5 11 Parameter (4) Supply Current 10 Max (2) Units mA 15 16 A The short circuit test is a momentary open loop test. 3.3V AC Electrical Characteristics (1) Unless otherwise is specified, all limits ensured for TA = 25C, V+ = 3.3V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ (3) GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 k 128 SR Slew Rate AV = +1, CL = 20 pF RL = 10 k Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms m Phase Margin CL = 20 pF, RL = 10 k 76 Gm Gain Margin CL = 20 pF, RL = 10 k 26 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.4 VPP in Input-Referred Current Noise f = 1 kHz 10 fA/Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 k 0.003 % (1) (2) (3) deg Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. 2.5V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 2.5V, V- = 0V, VCM = VO = V+/2, and RL > 1M. Boldface limits apply at the temperature extremes. Symbol VOS Input Offset Voltage TCVOS Input Offset Voltage Drift IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio (1) (2) (3) Typ (3) Max (2) Units 10 190 275 V LMP2231A 0.3 0.4 LMP2231B 0.3 2.5 0.02 1.0 50 Parameter Conditions Min (2) V/C 5 0V VCM 1.5V 77 76 91 pA fA dB Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 5 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com 2.5V DC Electrical Characteristics(1) (continued) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 2.5V, V- = 0V, VCM = VO = V+/2, and RL > 1M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions + Min (2) Typ (3) 83 83 120 Max (2) PSRR Power Supply Rejection Ratio 1.6V V 5.5V V- = 0V, VCM = 0V CMVR Common Mode Voltage Range CMRR 77 dB CMRR 76 dB -0.2 -0.2 AVOL Large Signal Voltage Gain VO = 0.3V to 2.2V RL = 10 k to V+/2 104 104 VO Output Swing High RL = 10 k to V+/2 VIN(diff) = 100 mV 12 50 50 Output Swing Low RL = 10 k to V+/2 VIN (diff) = -100 mV 13 50 50 IO Output Current IS (4) (4) 120 5 4 8 Sinking, VO to V+ VIN(diff) = -100 mV 3.5 2.5 7 Supply Current dB 1.7 1.7 Sourcing, VO to V- VIN(diff) = 100 mV Units V dB mV from either rail mA 10 14 15 A The short circuit test is a momentary open loop test. 2.5V AC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 2.5V, V- = 0V, VCM = VO = V+/2, and RL > 1M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 k SR Slew Rate AV = +1, CL = 20 pF RL = 10 k Min (2) Typ (3) 128 Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms m Phase Margin CL = 20 pF, RL = 10 k 74 deg Gm Gain Margin CL = 20 pF, RL = 10 k 26 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.5 VPP in Input-Referred Current Noise f = 1 kHz 10 fA/Hz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 k 0.005 % (1) (2) (3) 6 Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 1.8V DC Electrical Characteristics (1) Unless otherwise specified, all limits ensured for TA = 25C, V+ = 1.8V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Typ (3) Max (2) Units 10 230 325 V LMP2231A 0.3 0.4 LMP2231B 0.3 2.5 0.02 1.0 50 Parameter VOS Input Offset Voltage TCVOS Input Offset Voltage Drift Min (2) Conditions IBIAS Input Bias Current IOS Input Offset Current CMRR Common Mode Rejection Ratio 0V VCM 0.8V 76 75 92 PSRR Power Supply Rejection Ratio 1.6V V+ 5.5V V- = 0V, VCM = 0V 83 83 120 CMVR Common Mode Voltage Rang CMRR 76 dB CMRR 75 dB -0.2 0 AVOL Large Signal Voltage Gain VO = 0.3V to 1.5V RL = 10 k to V+/2 103 103 VO Output Swing High IO Output Current IS (1) (2) (3) (4) (4) pA 5 fA dB dB 1.0 1.0 V 120 RL = 10 k to V+/2 VIN(diff) = 100 mV dB 12 50 50 + Output Swing Low V/C RL = 10 k to V /2 VIN(diff) = -100 mV 50 50 13 Sourcing, VO to V- VIN(diff) = 100 mV 2.5 2 5 Sinking, VO to V+ VIN(diff) = -100 mV 2 1.5 5 Supply Current mV from either rail mA 10 14 15 A Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. The short circuit test is a momentary open loop test. 1.8V AC Electrical Characteristics (1) Unless otherwise is specified, all limits ensured for TA = 25C, V+ = 1.8V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (2) Typ (3) GBW Gain-Bandwidth Product CL = 20 pF, RL = 10 k 127 SR Slew Rate AV = +1, CL = 20 pF RL = 10 k Falling Edge 58 Rising Edge 48 Max (2) Units kHz V/ms m Phase Margin CL = 20 pF, RL = 10 k 70 Gm Gain Margin CL = 20 pF, RL = 10 k 25 dB en Input-Referred Voltage Noise Density f = 1 kHz 60 nV/Hz Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.4 VPP (1) (2) (3) deg Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. All limits are specified by testing, statistical analysis or design. Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 7 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com 1.8V AC Electrical Characteristics(1) (continued) Unless otherwise is specified, all limits ensured for TA = 25C, V+ = 1.8V, V- = 0V, VCM = VO = V+/2, and RL > 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Min (2) Conditions in Input-Referred Current Noise f = 1 kHz THD+N Total Harmonic Distortion + Noise f = 100 Hz, RL = 10 k Typ (3) Max (2) Units 10 fA/Hz 0.005 % Connection Diagram OUT V 5 1 V + N/C + IN+ - 2 + 3 - 4 VIN - 2 - 3 4 VIN 8 - 7 + 6 N/C + V VOUT INV Figure 2. 5-Pin SOT-23 (Top View) See Package Number DBV0005A 8 1 5 N/C Figure 3. 8-Pin SOIC (Top View) See Package Number D0008A Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Typical Performance Characteristics Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Offset Voltage Distribution TCVOS Distribution 10 16 VS = 5V VS = 5V VCM = VS/2 TA = 25C 8 VCM = VS/2 12 PERCENTAGE (%) PERCENTAGE (%) 14 10 8 6 4 -40C d TA d 125C 6 4 2 2 0 -150 -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 TCVOS (PV/C) VOS (PV) Figure 4. Figure 5. Offset Voltage Distribution TCVOS Distribution 10 14 VS = 3.3V VCM = VS/2 10 8 6 4 -40C d TA d 125C VS = 3.3V 8 VCM = VS/2 TA = 25C PERCENTAGE (%) PERCENTAGE (%) 12 6 4 2 2 0 -150 -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 TCVOS (PV/C) VOS (PV) Figure 6. Figure 7. Offset Voltage Distribution TCVOS Distribution 10 14 VS = 2.5V VCM = VS/2 TA = 25C 8 VCM = VS/2 10 PERCENTAGE (%) PERCENTAGE (%) 12 VS = 2.5V 8 6 4 -40C d TA d 125C 6 4 2 2 0 -150 -100 -50 0 50 100 150 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 TCVOS (PV/C) VOS (PV) Figure 8. Figure 9. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 9 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Offset Voltage Distribution TCVOS Distribution 25 12 VS = 1.8V VS = 1.8V TA = 25C 10 VCM = VS/2 20 PERCENTAGE (%) PERCENTAGE (%) VCM = VS/2 8 6 4 15 10 5 2 0 -150 -40C d TA d 125C -100 -50 0 50 100 0 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 150 TCVOS (PV/C) VOS (PV) Figure 10. Figure 11. Offset Voltage vs. VCM Offset Voltage vs. VCM 250 250 VS = 3.3V -40C 150 150 25C -40C 25C 85C 50 125C -50 85C 125C -50 -150 -150 -250 -0.2 50 VOS (PV) OFFSET VOLTAGE (PV) VS = 5V 0.8 1.8 2.8 3.8 -250 -0.2 0.2 4.3 0.6 1 1.4 1.8 VCM (V) VCM (V) Figure 12. Figure 13. Offset Voltage vs. VCM Offset Voltage vs. VCM VS = 2.5V 150 -40C -40C 50 -50 25C 50 VOS (PV) VOS (PV) 85C 85C -50 125C 125C -150 -150 10 3 VS = 1.8V 25C -250 -0.2 2.6 250 250 150 2.2 0.2 0.6 1 1.4 1.8 2.2 -250 -0.2 0 0.2 0.4 0.6 0.8 VCM (V) VCM (V) Figure 14. Figure 15. Submit Documentation Feedback 1 1.2 1.4 Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Offset Voltage vs. Temperature Offset Voltage vs. Supply Voltage 120 VCM = 0V 5 TYPICAL PARTS 80 80 OFFSET VOLTAGE (PV) OFFSET VOLTAGE (PV) 100 VS = 1.8V, 2.5V, 3.3V, 5V 100 60 40 20 0 -20 -40 60 -40C 40 25C 20 0 85C -20 -60 -80 -40 -20 125C 0 20 40 60 80 100 120 TEMPERATURE (C) -40 1.5 2 2.5 3 3.5 4 4.5 5 5.5 SUPPLY VOLTAGE (V) Figure 16. Figure 17. Time Domain Voltage Noise Time Domain Voltage Noise Figure 18. Figure 19. Time Domain Voltage Noise Time Domain Voltage Noise Figure 20. Figure 21. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 11 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Input Bias Current vs. VCM Input Bias Current vs. VCM 10 40 VS = 2V INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (fA) 25C 20 10 0 -40C -10 -20 6 4 85C 2 0 -2 -6 -8 -40 -10 0.25 0.5 1 0.75 1.25 125C -4 -30 0 VS = 2V 8 30 0 1.5 0.25 0.5 0.75 1.25 Figure 22. Figure 23. Input Bias Current vs. VCM Input Bias Current vs. VCM 40 10 VS = 2.5V 20 -40C 10 0 -10 -20 25C VS = 2.5V 8 INPUT BIAS CURRENT (pA) 30 6 4 85C 2 0 -2 -4 125C -6 -30 -8 -40 0 0.5 1 1.5 -10 2 0 0.5 1 VCM (V) 1.5 Figure 25. Input Bias Current vs. VCM Input Bias Current vs. VCM 20 VS = 3.3V VS = 3.3V 15 50 INPUT BIAS CURRENT (pA) 75 INPUT BIAS CURRENT (fA) 2 VCM (V) Figure 24. 100 25C 25 0 -40C -25 -50 -75 10 125C 5 0 85C -5 -10 -15 -100 -20 0 12 1.5 VCM (V) VCM (V) INPUT BIAS CURRENT (fA) 1 0.5 1 1.5 2 2.5 0 0.5 1 1.5 VCM (V) VCM (V) Figure 26. Figure 27. Submit Documentation Feedback 2 2.5 Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Input Bias Current vs. VCM Input Bias Current vs. VCM 600 30 VS = 5V 400 300 200 25C 100 0 -100 -40C -200 1 3 2 20 125C 15 10 5 0 -5 85C -10 -15 -20 -25 -30 -300 0 VS = 5V 25 INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (fA) 500 4 0 1 2 VCM (V) 3 4 VCM (V) Figure 28. Figure 29. PSRR vs. Frequency Supply Current vs. Supply Voltage 11 0 VS = 2V, 2.5V, 3.3V, 5V -20 PSRR (dB) SUPPLY CURRENT (PA) 10 -40 +PSRR -60 -80 -100 VS = 2V -PSRR -120 -140 -160 10 125C 85C 9 25C 8 -40C 7 6 VS = 5V 100 1k 10k 100k FREQUENCY (Hz) 5 1.5 2.5 3.5 4.5 5.5 SUPPLY VOLTAGE (V) Figure 30. Figure 31. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 13 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Sinking Current vs. Supply Voltage Sourcing Current vs. Supply Voltage 30 40 35 25 30 -40C -40C ISOURCE (mA) ISINK (mA) 20 25C 15 85C 10 25 25C 20 125C 125C 10 5 5 0 1.5 2.5 3.5 4.5 0 1.5 5.5 SUPPLY VOLTAGE (V) 2.5 3.5 4.5 5.5 SUPPLY VOLTAGE (V) Figure 32. Figure 33. Output Swing High vs. Supply Voltage Output Swing Low vs. Supply Voltage 30 25 RL = 10 k: RL = 10 k: 20 85C 25C 15 85C 20 15 10 2.5 3.5 4.5 5 1.5 5.5 2.5 Figure 34. 4.5 5.5 Figure 35. Open Loop Frequency Response 100 PHASE 3.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Open Loop Frequency Response 120 100 90 75 90 50 60 120 PHASE -40C 25C 75 -40C 25C -40C 10 1.5 125C 25 VOUT FROM RAIL (mV) 125C VOUT FROM RAIL (mV) 85C 15 -40C 25 30 GAIN 30 25 PHASE () 60 GAIN GAIN (dB) 125C 50 PHASE () GAIN (dB) 85C 25C 0 125C VS = 5V 0 0 RL = 10 k: CL = 20 pF -25 10 100 14 VS = 1.8V, 2.5V, 3.3V, 5V 0 RL = 10 k:, 100 k:, 10 M: 85C 1k 10k 100k -30 1M CL = 20 pF, 50 pF, 100 pF -25 10k 1k 10 100 FREQUENCY (Hz) FREQUENCY (Hz) Figure 36. Figure 37. Submit Documentation Feedback 100k -30 1M Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Phase Margin vs. Capacitive Load 90 Slew Rate vs. Supply Voltage 60 VS = 5V RL = 100 k: SLEW RATE (V/ms) PHASE MARGIN () VS = 1.8V VS = 2.5V 70 60 50 20 52 48 RISING EDGE 44 RL = 10 k: VS = 3.3V 40 60 FALLING EDGE 56 80 80 40 1.5 100 2 2.5 3 3.5 4 4.5 CAPACITIVE LOAD (pF) SUPPLY VOLTAGE (V) Figure 38. Figure 39. THD+N vs. Amplitude THD+N vs. Frequency 10 5 5.5 1 RL = 10 k: CL = 20 pF 0.1 1 VS = 2V VS = 2.5V THD+N (%) THD+N (%) VS = 2V 0.1 0.01 VS = 3.3V RL = 10 k: VO = VS 1V VS = 2.5V 0.01 0.001 VS = 3.3V VS = 5V VS = 5V CL = 20 pF f = 1 kHz 0.001 0.01 0.1 1 10 0.0001 1 100 1k 10k Figure 40. Figure 41. Large Signal Step Response Small Signal Step Response VS = 5V VIN = 2 VPP f = 1 kHz AV = +1 50 mV/DIV 500 mV/DIV 10 100k FREQUENCY (Hz) VOUT (VPP) VS = 5V VIN = 200 mVPP f = 1 kHz AV = +1 RL = 10 k: RL = 10 k: CL = 20 pF CL = 20 pF 100 Ps/DIV 100 Ps/DIV Figure 42. Figure 43. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 15 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise Specified: TA = 25C, VS = 5V, VCM = VS/2, where VS = V+ - V- Small Signal Step Response 100 mV/DIV Large Signal Step Response 1V/DIV VS = 5V VIN = 400 mVPP f = 1 kHz AV = +10 VS = 5V VIN = 50 mVPP f = 1 kHz AV = +10 RL = 10 k: RL = 10 k: CL = 20 pF CL = 20 pF 100 Ps/DIV 100 Ps/DIV Figure 44. Figure 45. CMRR vs. Frequency Input Voltage Noise vs. Frequency 140 1000 VS = 5V VS = 2.5V 120 VOLTAGE NOISE nV/ Hz) VS = 3.3V CMRR (dB) 100 80 VS = 5V 60 40 20 0 10 100 1k 10k 100k 10 1 1 10 100 1k 10k FREQUENCY (Hz) FREQUENCY (Hz) Figure 46. 16 100 Figure 47. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 APPLICATION INFORMATION LMP2231 The LMP2231 is a single CMOS precision amplifier that offer low offset voltage and low offset voltage drift, and high gain while only consuming 10 A of current per channel. The LMP2231 is a micropower op amp, consuming only 10 A of current. Micropower op amps extend the run time of battery powered systems and reduce energy consumption in energy limited systems. The ensured supply voltage range of 1.8V to 5.0V along with the ultra-low supply current extend the battery run time in two ways. The extended ensured power supply voltage range of 1.8V to 5.0V enables the op amp to function when the battery voltage has depleted from its nominal value down to 1.8V. In addition, the lower power consumption increases the life of the battery. The LMP2231 has an input referred offset voltage of only 150 V maximum at room temperature. This offset is ensured to be less than 230 V over temperature. This minimal offset voltage along with very low TCVOS of only 0.3 V/C typical allows more accurate signal detection and amplification in precision applications. The low input bias current of only 20 fA gives the LMP2231 superiority for use in high impedance sensor applications. Bias Current of an amplifier flows through source resistance of the sensor and the voltage resulting from this current flow appears as a noise voltage on the input of the amplifier. The low input bias current enables the LMP2231 to interface with high impedance sensors while generating negligible voltage noise. Thus the LMP2231 provides better signal fidelity and a higher signal-to-noise ration when interfacing with high impedance sensors. Texas Instruments is heavily committed to precision amplifiers and the market segment they serve. Technical support and extensive characterization data is available for sensitive applications or applications with a constrained error budget. The operating supply voltage range of 1.8V to 5.5V over the extensive temperature range of -40C to 125C makes the LMP2231 an excellent choice for low voltage precision applications with extensive temperature requirements. The LMP2231 is offered in the space saving 5-Pin SOT-23 and 8-pin SOIC package. These small packages are ideal solutions for area constrained PC boards and portable electronics. TOTAL NOISE CONTRIBUTION The LMP2231 has a very low input bias current, very low input current noise, and low input voltage noise for micropower amplifier. As a result, this amplifier makes a great choice for circuits with high impedance sensor applications. Figure 48 shows the typical input noise of the LMP2231 as a function of source resistance where: en denotes the input referred voltage noise ei is the voltage drop across source resistance due to input referred current noise or ei = RS * in et shows the thermal noise of the source resistance eni shows the total noise on the input. Where: eni = 2 2 2 en + ei + et The input current noise of the LMP2231 is so low that it will not become the dominant factor in the total noise unless source resistance exceeds 300 M, which is an unrealistically high value. As is evident in Figure 48, at lower RS values, total noise is dominated by the amplifier's input voltage noise. Once RS is larger than a 100 k, then the dominant noise factor becomes the thermal noise of RS. As mentioned before, the current noise will not be the dominant noise factor for any practical application. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 17 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com VOLTAGE NOISE DENSITY (nV/ Hz) 1000 eni en 100 et 10 ei 1 0.1 10 100 1k 10k 100k 1M 10M RS (:) Figure 48. Total Input Noise VOLTAGE NOISE REDUCTION The LMP2231 has an input voltage noise of 60 nV/Hz . While this value is very low for micropower amplifiers, this input voltage noise can be further reduced by placing N amplifiers in parallel as shown in Figure 49. The total voltage noise on the output of this circuit is divided by the square root of the number of amplifiers used in this parallel combination. This is because each individual amplifier acts as an independent noise source, and the average noise of independent sources is the quadrature sum of the independent sources divided by the number of sources. For N identical amplifiers, this means: REDUCED INPUT VOLTAGE NOISE = 1 N en1+en2+ = 1 N Nen = = 1 2 2 2 2 +enN N en N en N Figure 49 shows a schematic of this input voltage noise reduction circuit. Typical resistor values are: RG = 10, RF = 1 k, and RO = 1 k. 18 Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 + V + - VIN VOUT - RG RO V RF + V + RG V - RO RF + V + RG V - RO RF + V + RG V - RO RF Figure 49. Noise Reduction Circuit PRECISION INSTRUMENTATION AMPLIFIER Measurement of very small signals with an amplifier requires close attention to the input impedance of the amplifier, gain of the overall signal on the inputs, and the gain on each input of the amplifier. This is because the difference of the input signal on the two inputs is of the interest and the common signal is considered noise. A classic circuit implementation is an instrumentation amplifier. Instrumentation amplifiers have a finite, accurate, and stable gain. They also have extremely high input impedances and very low output impedances. Finally they have an extremely high CMRR so that the amplifier can only respond to the differential signal. A typical instrumentation amplifier is shown in Figure 50. V1 + V01 - R2 KR2 R1 R1 R11 = a + R1 V2 + VOUT V02 R2 KR2 Figure 50. Instrumentation Amplifier There are two stages in this amplifier. The last stage, output stage, is a differential amplifier. In an ideal case the two amplifiers of the first stage, input stage, would be set up as buffers to isolate the inputs. However they cannot be connected as followers because of mismatch of amplifiers. That is why there is a balancing resistor between the two. The product of the two stages of gain will give the gain of the instrumentation amplifier. Ideally, the CMRR should be infinite. However the output stage has a small non-zero common mode gain which results from resistor mismatch. Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 19 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com In the input stage of the circuit, current is the same across all resistors. This is due to the high input impedance and low input bias current of the LMP2231. GIVEN: I R = I R 11 1 (1) By Ohm's Law: VO1 - VO2 = (2R1 + R11) IR 11 = (2a + 1) R11 x IR 11 = (2a + 1) V R 11 (2) However: VR 11 = V1 - V2 (3) So we have: VO1-VO2 = (2a+1)(V1-V2) (4) Now looking at the output of the instrumentation amplifier: KR2 VO = R2 (VO2 - VO1) = -K (VO1 - VO2) (5) Substituting from Equation 4: VO = -K (2a + 1) (V1 - V2) (6) This shows the gain of the instrumentation amplifier to be: -K(2a+1) (7) Typical values for this circuit can be obtained by setting: a = 12 and K= 4. This results in an overall gain of -100. SINGLE SUPPLY STRAIN GAGE BRIDGE AMPLIFIER Strain gauges are popular electrical elements used to measure force or pressure. Strain gauges are subjected to an unknown force which is measured as a the deflection on a previously calibrated scale. Pressure is often measured using the same technique; however this pressure needs to be converted into force using an appropriate transducer. Strain gauges are often resistors which are sensitive to pressure or to flexing. Sense resistor values range from tens of ohms to several hundred kilo ohms. The resistance change which is a result of applied force across the strain gauge might be 1% of its total value. An accurate and reliable system is needed to measure this small resistance change. Bridge configurations offer a reliable method for this measurement. Bridge sensors are formed of four resistors, connected as a quadrilateral. A voltage source or a current source is used across one of the diagonals to excite the bridge while a voltage detector across the other diagonal measures the output voltage. Bridges are mainly used as null circuits or to measure a differential voltages. Bridges will have no output voltage if the ratios of two adjacent resistor values are equal. This fact is used in null circuit measurements. These are particularly used in feedback systems which involve electrochemical elements or human interfaces. Null systems force an active resistor, such as a strain gauge, to balance the bridge by influencing the measured parameter. Often in sensor applications at lease one of the resistors is a variable resistor, or a sensor. The deviation of this active element from its initial value is measured as an indication of change in the measured quantity. A change in output voltage represents the sensor value change. Since the sensor value change is often very small, the resulting output voltage is very small in magnitude as well. This requires an extensive and very precise amplification circuitry so that signal fidelity does not change after amplification. Sensitivity of a bridge is the ratio of its maximum expected output change to the excitation voltage change. 20 Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 Figure 51 (a) shows a typical bridge sensor and Figure 51(b) shows the bridge with four sensors. R in Figure 51(b) is the nominal value of the sense resistor and the deviations from R are proportional to the quantity being measured. R1 R + 'R R2 EXCITATION SOURCE VOUT R3 R - 'R EXCITATION SOURCE VOUT R4 R - 'R R + 'R (b) (a) R 1 + 3 R1 (c) R4 - VOUT = R2 (c) VOUT = R1 R 1 + 4 R2 (c) (c) R3 'R R x VSOURCE x VSOURCE Figure 51. Bridge Sensor Instrumentation amplifiers are great for interfacing with bridge sensors. Bridge sensors often sense a very small differential signal in the presence of a larger common mode voltage. Instrumentation amplifiers reject this common mode signal. Figure 52 shows a strain gauge bridge amplifier. In this application the LMP2231 is used to buffer the LM4140's precision output voltage. The LM4140A is a precision voltage reference. The other three LMP2231s are used to form an instrumentation amplifier. This instrumentation amplifier uses the LMP2231's high CMRR and low VOS and TCVOS to accurately amplify the small differential signal generated by the output of the bridge sensor. This amplified signal is then fed into the ADC121S021 which is a 12-bit analog to digital converter. This circuit works on a single supply voltage of 5V. + + V V 3 LMP2231 + 2 6 LM4140A 1 PF 1,4,7,8 V + 0.1 PF V + + 1/2 LMP2232 - R+'R 10 k: 12 k: R + - V LMP2231 1 k: R 10 PF 40 k: VA IN + R+'R ADC121S021 + V - 12 k: 1/2 LMP2232 + GND 10 k: 40 k: Figure 52. Strain Gauge Bridge Amplifier Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 21 LMP2231 SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 www.ti.com PORTABLE GAS DETECTION SENSOR Gas sensors are used in many different industrial and medical applications. They generate a current which is proportional to the percentage of a particular gas sensed in an air sample. This current goes through a load resistor and the resulting voltage drop is measured. Depending on the sensed gas and sensitivity of the sensor, the output current can be in the order of tens of microamperes to a few milliamperes. Gas sensor datasheets often specify a recommended load resistor value or they suggest a range of load resistors to choose from. Oxygen sensors are used when air quality or oxygen delivered to a patient needs to be monitored. Fresh air contains 20.9% oxygen. Air samples containing less than 18% oxygen are considered dangerous. Oxygen sensors are also used in industrial applications where the environment must lack oxygen. An example is when food is vacuum packed. There are two main categories of oxygen sensors, those which sense oxygen when it is abundantly present (i.e. in air or near an oxygen tank) and those which detect traces of oxygen in ppm. Figure 53 shows a typical circuit used to amplify the output of an oxygen detector. The LMP2231 makes an excellent choice for this application as it only draws 10 A of current and operates on supply voltages down to 1.8V. This application detects oxygen in air. The oxygen sensor outputs a known current through the load resistor. This value changes with the amount of oxygen present in the air sample. Oxygen sensors usually recommend a particular load resistor value or specify a range of acceptable values for the load resistor. Oxygen sensors typically have a life of one to two years. The use of the micropower LMP2231 means minimal power usage by the op amp and it enhances the battery life. Depending on other components present in the circuit design, the battery could last for the entire life of the oxygen sensor. The precision specifications of the LMP2231, such as its very low offset voltage, low TCVOS , low input bias current, low CMRR, and low PSRR are other factors which make the LMP2231 a great choice for this application. 99 k: + V 1 k: VOUT 1 k: + V - RL OXYGEN SENSOR Figure 53. Precision Oxygen Sensor 22 Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 LMP2231 www.ti.com SNOSB01E - JANUARY 2008 - REVISED MARCH 2013 REVISION HISTORY Changes from Revision D (March 2013) to Revision E * Page Changed layout of National Data Sheet to TI format .......................................................................................................... 22 Submit Documentation Feedback Copyright (c) 2008-2013, Texas Instruments Incorporated Product Folder Links: LMP2231 23 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (C) Device Marking (3) (4/5) (6) LMP2231AMA/NOPB ACTIVE SOIC D 8 95 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMP22 31AMA LMP2231AMAE/NOPB ACTIVE SOIC D 8 250 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMP22 31AMA LMP2231AMAX/NOPB ACTIVE SOIC D 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMP22 31AMA LMP2231AMF/NOPB ACTIVE SOT-23 DBV 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5A LMP2231AMFE/NOPB ACTIVE SOT-23 DBV 5 250 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5A LMP2231AMFX/NOPB ACTIVE SOT-23 DBV 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5A LMP2231BMA/NOPB ACTIVE SOIC D 8 95 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMP22 31BMA LMP2231BMAE/NOPB ACTIVE SOIC D 8 250 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 LMP22 31BMA LMP2231BMF/NOPB ACTIVE SOT-23 DBV 5 1000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5B LMP2231BMFE/NOPB ACTIVE SOT-23 DBV 5 250 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5B LMP2231BMFX/NOPB ACTIVE SOT-23 DBV 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 AL5B (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 24-Aug-2017 TAPE AND REEL INFORMATION *All dimensions are nominal Device LMP2231AMAE/NOPB Package Package Pins Type Drawing SOIC SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant D 8 250 178.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2231AMAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2231AMF/NOPB SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMP2231AMFE/NOPB SOT-23 DBV 5 250 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMP2231AMFX/NOPB SOT-23 DBV 5 3000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMP2231BMAE/NOPB SOIC D 8 250 178.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMP2231BMF/NOPB SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMP2231BMFE/NOPB SOT-23 DBV 5 250 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMP2231BMFX/NOPB SOT-23 DBV 5 3000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 24-Aug-2017 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMP2231AMAE/NOPB SOIC D LMP2231AMAX/NOPB SOIC D 8 250 210.0 185.0 35.0 8 2500 367.0 367.0 35.0 LMP2231AMF/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LMP2231AMFE/NOPB SOT-23 DBV 5 250 210.0 185.0 35.0 LMP2231AMFX/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LMP2231BMAE/NOPB SOIC D 8 250 210.0 185.0 35.0 LMP2231BMF/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LMP2231BMFE/NOPB SOT-23 DBV 5 250 210.0 185.0 35.0 LMP2231BMFX/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 Pack Materials-Page 2 PACKAGE OUTLINE DBV0005A SOT-23 - 1.45 mm max height SCALE 4.000 SMALL OUTLINE TRANSISTOR C 3.0 2.6 1.75 1.45 PIN 1 INDEX AREA 1 0.1 C B A 5 2X 0.95 1.9 1.45 0.90 3.05 2.75 1.9 2 4 0.5 5X 0.3 0.2 3 (1.1) C A B 0.15 TYP 0.00 0.25 GAGE PLANE 8 TYP 0 0.22 TYP 0.08 0.6 TYP 0.3 SEATING PLANE 4214839/E 09/2019 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. Refernce JEDEC MO-178. 4. Body dimensions do not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm per side. www.ti.com EXAMPLE BOARD LAYOUT DBV0005A SOT-23 - 1.45 mm max height SMALL OUTLINE TRANSISTOR PKG 5X (1.1) 1 5 5X (0.6) SYMM (1.9) 2 2X (0.95) 3 4 (R0.05) TYP (2.6) LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:15X SOLDER MASK OPENING METAL SOLDER MASK OPENING METAL UNDER SOLDER MASK EXPOSED METAL EXPOSED METAL 0.07 MIN ARROUND 0.07 MAX ARROUND NON SOLDER MASK DEFINED (PREFERRED) SOLDER MASK DEFINED SOLDER MASK DETAILS 4214839/E 09/2019 NOTES: (continued) 5. Publication IPC-7351 may have alternate designs. 6. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com EXAMPLE STENCIL DESIGN DBV0005A SOT-23 - 1.45 mm max height SMALL OUTLINE TRANSISTOR PKG 5X (1.1) 1 5 5X (0.6) SYMM (1.9) 2 2X(0.95) 4 3 (R0.05) TYP (2.6) SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:15X 4214839/E 09/2019 NOTES: (continued) 7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 8. Board assembly site may have different recommendations for stencil design. www.ti.com PACKAGE OUTLINE D0008A SOIC - 1.75 mm max height SCALE 2.800 SMALL OUTLINE INTEGRATED CIRCUIT C SEATING PLANE .228-.244 TYP [5.80-6.19] A .004 [0.1] C PIN 1 ID AREA 6X .050 [1.27] 8 1 2X .150 [3.81] .189-.197 [4.81-5.00] NOTE 3 4X (0 -15 ) 4 5 B 8X .012-.020 [0.31-0.51] .010 [0.25] C A B .150-.157 [3.81-3.98] NOTE 4 .069 MAX [1.75] .005-.010 TYP [0.13-0.25] 4X (0 -15 ) SEE DETAIL A .010 [0.25] .004-.010 [0.11-0.25] 0 -8 .016-.050 [0.41-1.27] DETAIL A (.041) [1.04] TYPICAL 4214825/C 02/2019 NOTES: 1. Linear dimensions are in inches [millimeters]. Dimensions in parenthesis are for reference only. Controlling dimensions are in inches. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed .006 [0.15] per side. 4. This dimension does not include interlead flash. 5. Reference JEDEC registration MS-012, variation AA. www.ti.com EXAMPLE BOARD LAYOUT D0008A SOIC - 1.75 mm max height SMALL OUTLINE INTEGRATED CIRCUIT 8X (.061 ) [1.55] SYMM SEE DETAILS 1 8 8X (.024) [0.6] 6X (.050 ) [1.27] SYMM 5 4 (R.002 ) TYP [0.05] (.213) [5.4] LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:8X METAL SOLDER MASK OPENING EXPOSED METAL .0028 MAX [0.07] ALL AROUND SOLDER MASK OPENING METAL UNDER SOLDER MASK EXPOSED METAL .0028 MIN [0.07] ALL AROUND SOLDER MASK DEFINED NON SOLDER MASK DEFINED SOLDER MASK DETAILS 4214825/C 02/2019 NOTES: (continued) 6. Publication IPC-7351 may have alternate designs. 7. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com EXAMPLE STENCIL DESIGN D0008A SOIC - 1.75 mm max height SMALL OUTLINE INTEGRATED CIRCUIT 8X (.061 ) [1.55] SYMM 1 8 8X (.024) [0.6] 6X (.050 ) [1.27] SYMM 5 4 (R.002 ) TYP [0.05] (.213) [5.4] SOLDER PASTE EXAMPLE BASED ON .005 INCH [0.125 MM] THICK STENCIL SCALE:8X 4214825/C 02/2019 NOTES: (continued) 8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 9. 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