LT1222 500MHz, 3nV/Hz, AV 10 Operational Amplifier U FEATURES DESCRIPTIO The LT(R)1222 is a low noise, very high speed operational amplifier with superior DC performance. The LT1222 is stable in a noise gain of 10 or greater without compensation, or the part can be externally compensated for lower closed-loop gain at the expense of lower bandwidth and slew rate. It features reduced input offset voltage, lower input bias currents, lower noise and higher DC gain than devices with comparable bandwidth and slew rate. The circuit is a single gain stage that includes proprietary DC gain enhancement circuitry to obtain precision with high speed. The high gain and fast settling time make the circuit an ideal choice for data acquisition systems. The circuit is also capable of driving capacitive loads which makes it useful in buffer or cable driver applications. The compensation node can also be used to clamp the output swing. Gain-Bandwidth: 500MHz Gain of 10 Stable Uncompensated Slew Rate: 200V/s Input Noise Voltage: 3nV/Hz C-LoadTM Op Amp Drives Capacitive Loads External Compensation Pin Maximum Input Offset Voltage: 300V Maximum Input Bias Current: 300nA Maximum Input Offset Current: 300nA Minimum Output Swing Into 500: 12V Minimum DC Gain: 100V/mV, RL = 500 Settling Time to 0.1%: 75ns, 10V Step Settling Time to 0.01%: 120ns, 10V Step Differential Gain: 0.4%, AV = 2, RL = 150 Differential Phase: 0.1, AV = 2, RL = 150 U APPLICATIO S Wideband Amplifiers Buffers Active Filters Video and RF Amplification Cable Drivers 8-, 10-, 12-Bit Data Acquisition Systems LT, LTC and LTM are registered trademarks of Linear Technology Corporation. C-Load is a trademark of Linear Technology Corporation. U The LT1222 is a member of a family of fast, high performance amplifiers that employ Linear Technology Corporation's advanced complementary bipolar processing. For unity-gain stable applications the LT1220 can be used, and for gains of 4 or greater the LT1221 can be used. TYPICAL APPLICATIO AV = 10 with Output Clamping AV = - 1, CC = 30pF Pulse Response 15V 3k 1N5711 VIN 3 + 1N4148 0.1F 5 LT1222 2 1N5711 6 VOUT 0.5V - 909 100 LT1222 * TA01 RF = RG = 1k VS = 15V VIN = 100mV f = 5MHz LT1222 * TA02 1222fc 1 LT1222 W W W AXI U U ABSOLUTE RATI GS (Note 1) Total Supply Voltage (V + to V -) ............................. 36V Differential Input Voltage ........................................ 6V Input Voltage .......................................................... VS Output Short-Circuit Duration (Note 2) ........... Indefinite Specified Temperature Range LT1222C (Note 3) ................................... 0C to 70C LT1222I ...............................................-40C to 85C LT1222M (OBSOLETE) ............... - 55C to 125C Operating Temperature Range LT1222C ........................................... - 40C TO 85C LT1222I ...............................................-40C to 85C LT1222M (OBSOLETE) ............... - 55C to 125C Maximum Junction Temperature (See Below) Plastic Package ............................................... 150C Ceramic Package (OBSOLETE) .................. 175C Storage Temperature Range ................ - 65C to 150C Lead Temperature (Soldering, 10 sec)................. 300C U W U PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW NULL 8 NULL 1 7 V+ 6 VOUT -IN 2 +IN 3 5 COMP 4 SPECIAL ORDER CONSULT FACTORY V- H PACKAGE 8-LEAD TO-5 METAL CAN TJMAX = 175C, JA = 150C/W TOP VIEW NULL 1 8 NULL -IN 2 7 V+ +IN 3 6 VOUT V- 4 5 COMP S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC TJMAX = 150C, JA = 130C/W (N) TJMAX = 150C, JA = 190C/W (S) J8 PACKAGE 8-LEAD CERAMIC DIP TJMAX = 175C, JA = 100C/W (J) OBSOLETE PACKAGE Consider the N8 or S8 Packages for Alternate Source ORDER PART NUMBER LT1222CN8 LT1222CS8 LT1222IS8 S8 PART MARKING 1222 1222I ORDER PART NUMBER LT1222MJ8 OBSOLETE PACKAGE Consider the N8 or S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS TA = 25C, VS = 15V, VCM = 0V, unless otherwise specified. SYMBOL VOS IOS IB en in RIN PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Noise Voltage Input Noise Current Input Resistance CIN Input Capacitance Input Voltage Range (Positive) Input Voltage Range (Negative) Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Swing Output Current Slew Rate Full Power Bandwidth Gain-Bandwidth CMRR PSRR AVOL VOUT IOUT SR GBW CONDITIONS (Note 4) f = 10kHz f = 10kHz VCM = 12V Differential MIN 20 12 VCM = 12V VS = 5V to 15V VOUT = 10V, RL = 500 RL = 500 VOUT = 12V (Note 5) 10V Peak (Note 6) f = 1MHz 100 98 100 12 24 150 TYP 100 100 100 3 2 45 12 2 14 - 13 120 110 200 13 26 200 3.2 500 MAX 300 300 300 - 12 UNITS V nA nA nV/Hz pA/Hz M k pF V V dB dB V/mV V mA V/s MHz MHz 1222fc 2 LT1222 ELECTRICAL CHARACTERISTICS SYMBOL tr, tf ts PARAMETER Rise Time, Fall Time Overshoot Propagation Delay Settling Time Differential Gain Differential Phase RO IS Output Resistance Supply Current VS = 15V, TA = 25C, VCM = 0V, unless otherwise specified. CONDITIONS AV = 10, 10% to 90%, 0.1V AV = 10, 0.1V AV = 10, 50% VIN to 50% VOUT, 0.1V 10V Step, 0.1% 10V Step, 0.01% AV = 2, CC = 50pF, f = 3.58MHz, RL = 150 (Note 7) AV = 10, CC = 0pF, f = 3.58MHz, RL = 1k (Note 7) AV = 2, CC = 50pF, f = 3.58MHz, RL = 150 (Note 7) AV = 10, CC = 0pF, f = 3.58MHz, RL = 1k (Note 7) AV = 10, f = 1MHz MIN TYP 2.4 43 5.2 75 120 0.40 0.15 0.10 0.01 0.1 8 MAX 10.5 UNITS ns % ns ns ns % % DEG DEG mA The denotes the specifications which apply over the temperature range 0C TA 70C, otherwise specifications are at TA = 25C. VS = 15V, VCM = 0V, unless otherwise specified. SYMBOL VOS IOS IB CMRR PSRR AVOL VOUT IOUT SR IS PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Swing Output Current Slew Rate Supply Current CONDITIONS (Note 4) MIN VCM = 12V VS = 5V to 15V VOUT = 10V, RL = 500 RL = 500 VOUT = 12V (Note 5) 100 98 100 12 24 150 TYP 100 5 100 100 120 110 200 13 26 200 8 MAX 600 400 400 11 UNITS V V/C nA nA dB dB V/mV V mA V/s mA The denotes the specifications which apply over the temperature range - 55C TA 125C for LT1222M, -40C TA 85C for LT1222I, otherwise specifications are at TA = 25C. VS = 15V, VCM = 0V, unless otherwise specified. SYMBOL VOS IOS IB CMRR PSRR AVOL VOUT PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Swing IOUT Output Current SR IS Slew Rate Supply Current CONDITIONS (Note 4) MIN VCM = 12V VS = 5V to 15V VOUT = 10V, RL = 500 RL = 500 RL = 1k VOUT = 10V VOUT = 12V (Note 5) Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: A heat sink may be required when the output is shorted indefinitely. Note 3: The LT1222C is guaranteed to meet specified performance from 0C to 70C and is designed, characterized and expected to meet these extended temperature limits, but is not tested at -40C and 85C. The LT1222I is 98 98 50 10 12 20 12 110 TYP 100 5 100 100 120 110 200 13 13 26 13 200 8 MAX 600 800 1000 11 UNITS V V/C nA nA dB dB V/mV V V mA mA V/s mA guaranteed to meet the extended temperature limits. Note 4: Input offset voltage is pulse tested and is exclusive of warm-up drift. Note 5: Slew rate is measured between 10V on an output swing of 12V. Note 6: FPBW = SR/2VP. Note 7: Differential Gain and Phase are tested with five amps in series. Attenuators of 1/Gain are used as loads. 1222fc 3 LT1222 U W TYPICAL PERFORMANCE CHARACTERISTICS Input Common Mode Range vs Supply Voltage Supply Current vs Supply Voltage and Temperature 11 20 10 15 +VCM 10 -VCM 5 T = 125C 9 T = 25C 8 7 6 0 T = - 55C 5 5 10 15 SUPPLY VOLTAGE (V) 5 10 15 SUPPLY VOLTAGE (V) LT1222 * TPC01 400 15V SUPPLIES 15 10 5V SUPPLIES 100 1k LOAD RESISTANCE () 20 Open-Loop Gain vs Resistive Load 120 TA = 25C 110 200 IB+ 100 IB- 0 -100 - 200 - 300 -500 -15 10k VS = 15V 100 VS = 5V 90 80 0 5 -10 -5 10 INPUT COMMON MODE VOLTAGE (V) 70 15 LT1222 * TPC05 LT1222 * TPC06 100 INPUT VOLTAGE NOISE (nV/Hz) 35 30 25 VS = 15V TA = 25C AV = 101 RS = 100k 100 10 in 10 1 en 1 100 125 LT1222 * TPC07 10 100 1k 10k FREQUENCY (Hz) 0.1 100k LT1222 * TPC08 120 INPUT CURRENT NOISE (pA/Hz) 40 10k Power Supply Rejection Ratio vs Frequency 1000 VS = 5V 45 100 1k LOAD RESISTANCE () 10 Input Noise Spectral Density 50 OUTPUT SHORT-CIRCUIT CURRENT (mA) 5 10 15 SUPPLY VOLTAGE (V) LT1222 * TPC03 300 Output Short-Circuit Current vs Temperature 0 25 75 50 TEMPERATURE (C) 5 0 VS = 15V TA = 25C LT1222 * TPC04 20 - 50 - 25 - VSW -400 0 10 10 20 OPEN-LOOP GAIN (dB) INPUT BIAS CURRENT (nA) OUTPUT VOLTAGE SWING (VP-P) 500 5 +VSW Input Bias Current vs Input Common Mode Voltage TA = 25C VOS = 30mV 20 15 LT1222 * TPC02 Output Voltage Swing vs Resistive Load 25 TA = 25C RL = 500 VOS = 30mV 0 0 20 POWER SUPPLY REJECTION RATIO (dB) 0 30 MAGNITUDE OF OUTPUT VOLATGE (V) TA = 25C VOS = 0.5mV SUPPLY CURRENT (mA) MAGNITUDE OF INPUT VOLTAGE (V) 20 Output Voltage Swing vs Supply Voltage VS = 15V TA = 25C 100 +PSRR 80 -PSRR 60 40 20 0 100 1k 10k 100k 1M FREQUENCY (Hz) 10M 100M LT1222 * TPC09 1222fc 4 LT1222 U W TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Rejection Ratio vs Frequency Output Swing and Error vs Settling Time (Noninverting) VS = 15V TA = 25C 6 6 60 40 10mV 4 2 0 -2 -4 10mV -6 20 0 1k 10k 1M 100k FREQUENCY (Hz) 10M 1mV OUTPUT SWING (V) 80 1mV -8 25 75 100 50 SETTLING TIME (ns) 60 40 40 20 VOLTAGE MAGNITUDE (dB) 0 26 C = 50pF 24 22 20 C=0 18 16 C = 500pF 0.1 0.01 C = 1000pF 1 10 FREQUENCY (MHz) 0.001 10k 100 550 525 SLEW RATE (V/s) 250 450 425 225 VS = 15V AV = -10 CC = 0 (SR +) + (SR -) SR = 2 200 175 150 125 LT1222 * TPC16 125 - 50 - 25 0 25 50 75 TEMPERATURE (C) 100M Total Harmonic Distortion vs Frequency 275 VS = 15V 475 1M 10M FREQUENCY (Hz) LT1222 * TPC15 Slew Rate vs Temperature 500 100k LT1222 * TPC14 Gain-Bandwidth vs Temperature 100 1 14 10 - 20 100M 125 VS = 15V TA = 25C AV = 10 C = 100pF LT1222 * TPC13 0 75 25 50 TEMPERATURE (C) 75 100 50 SETTLING TIME (ns) 10 12 10M 25 LT1222 * TPC12 TOTAL HARMONIC DISTORTION AND NOISE (%) VOLTAGE GAIN (dB) 60 PHASE MARGIN (DEG) VS = 5V 0 1mV Closed-Loop Output Impedance vs Frequency VS = 15V TA = 25C AV = -10 28 80 20 GAIN-BANDWIDTH (MHz) 125 30 100 VS = 15V 10mV LT1222 * TPC11 VS = 15V 400 - 50 - 25 -4 Frequency Response vs Capacitive Load 120 TA = 25C 0 100k 100 10k 1M 1k FREQUENCY (Hz) -2 -10 Voltage Gain and Phase vs Frequency VS = 5V 0 -6 LT1222 * TPC10 100 2 -8 0 1mV 10mV 4 -10 100M VS = 15V TA = 25C 8 OUTPUT IMPEDANCE () 100 VS = 15V TA = 25C 8 OUTPUT SWING (V) COMMON MODE REJECTION RATIO (dB) 10 10 120 80 Output Swing and Error vs Settling Time (Inverting) 100 125 LT1222 * TPC17 0.01 VS = 15V VO = 3VRMS RL = 500 0.001 AV = 10 0.0001 10 100 1k 10k FREQUENCY (Hz) 100k LT1222 * TPC18 1222fc 5 LT1222 U W TYPICAL PERFORMANCE CHARACTERISTICS Small Signal, AV = 10 Large Signal, AV = 10, CL = 10,000pF Large Signal, AV = 10 RF = 909 VS = 15V f = 5MHz RG = 100 VIN = 20mV RF = 909 VS = 15V f = 2MHz RG = 100 VIN = 2V LT1222 * TPC19 LT1222 * TPC20 VS = 15V f = 2MHz RF = 1k RG = 100 (75) VIN = 2V LT1222 * TPC22 LT1222 * TPC23 VS = 15V f = 500kHz RF = 1k RG = 100 (75) VIN = 15mV LT1222 * TPC24 U VS = 15V f = 5MHz RF = 1k RG = 100 (75) VIN = 20mV LT1222 * TPC21 Small Signal, AV = - 10, CL = 1,000pF Large Signal, AV = - 10 Small Signal, AV = - 10 RF = 909 VS = 15V f = 20kHz RG = 100 VIN = 2V U W U APPLICATIONS INFORMATION The LT1222 is stable in noise gains of 10 or greater and may be inserted directly into HA2520/2/5, HA2541/2/4, AD817, AD847, EL2020, EL2044 and LM6361 applications, provided that the nulling circuitry is removed and the amplifier configuration has a high enough noise gain. The suggested nulling circuit for the LT1222 is shown in the following figure. Offset Nulling V+ 5k 1 3 + 0.1F 8 7 LT1222 2 - 6 4 0.1F V- LT1222 * AI01 Layout and Passive Components The LT1222 amplifier is easy to apply and tolerant of less than ideal layouts. For maximum performance (for example, fast settling time) use a ground plane, short lead lengths and RF-quality bypass capacitors (0.01F to 0.1F). For high drive current applications use low ESR bypass capacitors (1F to 10F tantalum). Sockets should be avoided when maximum frequency performance is required. For more details see Design Note 50. Feedback resistors greater than 5k are not recommended because a pole is formed with the input capacitance which can cause peaking or oscillations. Stray capacitance on Pin 5 should be minimized. Bias current cancellation circuitry is employed on the inputs of the LT1222 so the input bias current and input offset current have identical specifications. For this reason, matching the impedance on the inputs to reduce bias current errors is not necessary. 1222fc 6 LT1222 U W U U APPLICATIONS INFORMATION Output Clamping Access to the internal compensation node at Pin 5 allows the output swing of the LT1222 to be clamped. An example is shown on the first page of this data sheet. The compensation node is approximately one diode drop above the output and can source or sink 1.2mA. Back-to-back Schottky diodes clamp Pin 5 to a diode drop above ground so the output is clamped to 0.5V (the drop of the Schottkys at 1.2mA). The diode reference is bypassed for good AC response. This circuit is useful for amplifying the voltage at false sum nodes used in settling time measurements. Capacitive Loading The LT1222 is stable with capacitive loads. This is accomplished by sensing the load induced output pole and adding compensation at the amplifier gain node. As the capacitive load increases, both the bandwidth and phase margin decrease. There will be peaking in the frequency domain as shown in the curve of Frequency Response vs Capacitive Load. The small-signal transient response will have more overshoot as shown in the photo of the small-signal response with 1000pF load. The large-signal response with a 10,000pF load shows the output slew rate being limited to 4V/s by the short-circuit current. The LT1222 can drive coaxial cable directly, but for best pulse fidelity a resistor of value equal to the characteristic impedance of the cable (i.e., 75) should be placed in series with the output. The other end of the cable should be terminated with the same value resistor to ground. Compensation The LT1222 has a typical gain-bandwidth product of 500MHz which allows it to have wide bandwidth in high gain configurations (i.e., in a gain of 100, it will have a bandwidth of about 5MHz). For added flexibility the amplifier frequency response may be adjusted by adding capacitance from Pin 5 to ground. The compensation capacitor may be used to reduce overshoot, to allow the amplifier to be used in lower noise gains, or simply to reduce bandwidth. Table 1 shows gain and compensation capacitor vresus - 3dB bandwidth, maximum frequency peaking and small-signal overshoot. Table 1 AV CC (pF) f - 3dB (MHz) Max Peaking (dB) Overshoot (%) -1 30 99 4.2 36 -1 50 70 0.9 13 -1 82 32 0 0 -1 150 13 0 0 5 10 140 3.8 35 5 20 100 0 5 5 30 34 0 1 5 50 15 0 0 10 0 150 9.5 45 10 5 111 0.2 10 10 10 40 0 2 10 20 17 0 0 20 0 82 0.1 10 20 5 24 0 0 20 10 14 0 0 For frequencies < 10MHz the frequency response of the amplifier is approximately: f = 1/[2 * 53 * (CC + 6pF) * (Noise Gain)] The slew rate is affected as follows: SR = 1.2mA /(CC + 6pF) An example would be a gain of -10 (noise gain of 11) and CC = 20pF which has 10.5MHz bandwidth and 46V/s slew rate. It should be noted that the LT1222 is not stable in AV = 1 unless CC = 50pF and a 1k resistor is used as the feedback resistor. The 1k and input capacitance increase the noise gain at frequency to aid stability. 1222fc 7 LT1222 U TYPICAL APPLICATIONS N VOS Null Loop 150k Two Op Amp Instrumemtation Amplifier R5 220 150k 1 + VIN R1 10k 8 VOUT AV = 1001 LT1222 R2 1k - R3 1k 25k LT1220 10k - 100pF 10k 25 R4 10k + - VOUT LT1222 + VIN + GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102 TRIM R5 FOR GAIN TRIM R1 FOR COMMON MODE REJECTION BW = 3MHz LT1222 * TA04 - LT1097 100pF LT1222 * TA03 + W W SI PLIFIED SCHE ATIC V+ 7 NULL 1 8 BIAS 2 BIAS 1 COMP 5 6 OUT +IN 3 2 -IN V- 4 LT1222 * SS 1222fc 8 LT1222 U PACKAGE DESCRIPTION H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320) 0.335 - 0.370 (8.509 - 9.398) DIA 0.305 - 0.335 (7.747 - 8.509) 0.027 - 0.045 (0.686 - 1.143) 45TYP 0.040 (1.016) MAX 0.050 (1.270) MAX SEATING PLANE 0.165 - 0.185 (4.191 - 4.699) GAUGE PLANE 0.010 - 0.045* (0.254 - 1.143) PIN 1 0.028 - 0.034 (0.711 - 0.864) 0.200 (5.080) TYP REFERENCE PLANE 0.500 - 0.750 (12.700 - 19.050) H8(TO-5) 0.200 PCD 1197 0.110 - 0.160 (2.794 - 4.064) INSULATING STANDOFF 0.016 - 0.021** (0.406 - 0.533) *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 - 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 - 0.610) J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) CORNER LEADS OPTION (4 PLCS) 0.023 - 0.045 (0.584 - 1.143) HALF LEAD OPTION 0.045 - 0.068 (1.143 - 1.727) FULL LEAD OPTION 0.005 (0.127) MIN 0.405 (10.287) MAX 8 7 6 5 0.025 (0.635) RAD TYP 0.220 - 0.310 (5.588 - 7.874) 1 2 0.300 BSC (0.762 BSC) 3 4 0.200 (5.080) MAX 0.015 - 0.060 (0.381 - 1.524) 0.008 - 0.018 (0.203 - 0.457) 0 - 15 NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 0.045 - 0.065 (1.143 - 1.651) 0.014 - 0.026 (0.360 - 0.660) 0.100 (2.54) BSC 0.125 3.175 MIN J8 1298 OBSOLETE PACKAGES 1222fc 9 LT1222 U PACKAGE DESCRIPTION N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .400* (10.160) MAX 8 7 6 5 1 2 3 4 .255 .015* (6.477 0.381) .300 - .325 (7.620 - 8.255) .008 - .015 (0.203 - 0.381) ( +.035 .325 -.015 8.255 +0.889 -0.381 ) .045 - .065 (1.143 - 1.651) .130 .005 (3.302 0.127) .065 (1.651) TYP .100 (2.54) BSC .120 (3.048) .020 MIN (0.508) MIN .018 .003 (0.457 0.076) N8 1002 NOTE: 1. DIMENSIONS ARE INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) 1222fc 10 LT1222 U PACKAGE DESCRIPTION S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .189 - .197 (4.801 - 5.004) NOTE 3 .045 .005 .050 BSC 8 .245 MIN 7 6 5 .160 .005 .150 - .157 (3.810 - 3.988) NOTE 3 .228 - .244 (5.791 - 6.197) .030 .005 TYP 1 RECOMMENDED SOLDER PAD LAYOUT .010 - .020 x 45 (0.254 - 0.508) .008 - .010 (0.203 - 0.254) 3 4 .053 - .069 (1.346 - 1.752) .004 - .010 (0.101 - 0.254) 0- 8 TYP .016 - .050 (0.406 - 1.270) NOTE: 1. DIMENSIONS IN 2 .014 - .019 (0.355 - 0.483) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) .050 (1.270) BSC SO8 0303 1222fc Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 11 LT1222 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1220 45MHz, 250V/s Amplifier Unity Gain Stable Version of the LT1222 LT1221 150MHz, 250V/s Amplifier AV 4 Version of the LT1222 1222fc 12 Linear Technology Corporation LT 0507 REV C * PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear.com (c) LINEAR TECHNOLOGY CORPORATION 1992