MAX961-MAX964/ MAX997/MAX999 LE AVAILAB Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators _________________General Description ____________________________Features The MAX961-MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-the-RailsTM, and the outputs can sink or source 4mA to within 0.52V of GND and V CC . Propagation delay is 4.5ns (5mV overdrive), while supply current is 5mA per comparator. The MAX961/MAX963/MAX964 and MAX997 have a shutdown mode in which they consume only 270A supply current per comparator. The MAX961/MAX963 provide complementary outputs and a latch-enable feature. Latch enable allows the user to hold a valid comparator output. The MAX999 is available in a tiny SOT23-5 package. The single MAX961/MAX997 and dual MAX962 are available in space-saving 8-pin MAX(R) packages. ________________________Applications Ultra-Fast, 4.5ns Propagation Delay Ideal for +3V and +5V Single-Supply Applications Beyond-the-Rails Input Voltage Range Low, 5mA Supply Current (MAX997/MAX999) 3.5mV Internal Hysteresis for Clean Switching Output Latch (MAX961/MAX963) TTL/CMOS-Compatible Outputs Shutdown Mode (MAX961/MAX963/MAX964/MAX997) Available in Space-Saving Packages: 5-Pin SOT23 (MAX999) 8-Pin MAX (MAX961/MAX962/MAX997) 16-Pin QSOP (MAX964) Ordering Information PART TOP MARK PIN-PACKAGE PKG CODE Single 3V/5V Systems MAX961ESA 8 SO -- S8-2 Portable/Battery-Powered Systems MAX961EUA-T 8 MAX-8 -- U8-1 Threshold Detectors/Discriminators GPS Receivers MAX962ESA 8 SO -- S8-2 MAX962EUA-T 8 MAX-8 -- U8-1 MAX963ESD 14 SO -- S14-1 Line Receivers MAX964ESE 16 Narrow SO -- S16-1 Zero-Crossing Detectors MAX964EEE 16 QSOP -- E16-1 High-Speed Sampling Circuits Functional MAX997ESA 8 SO -- S8-2 MAX997EUA-T 8 MAX-8 -- U8-1 MAX999AAUK+T 5 SOT23-5 +AFEI U5+1 MAX999EUK-T 5 SOT23-5 ACAB U5-1 Diagrams PIN-PACKAGE LATCH ENABLE SHUTDOWN COMPLEMENTARY OUTPUT NO. OF COMPARATORS PART Selector Guide Note: All E grade devices are specified over the -40C to +85C operating temperature range. MAX999AAUK is specified over the -40C to +125C operating temperature range. +Denotes a lead-free package. Pin Configurations TOP VIEW MAX961 1 Yes Yes Yes 8 SO/MAX MAX962 2 No No No 8 SO/MAX MAX963 2 Yes Yes Yes 14 SO MAX964 4 No Yes No 16 SO/QSOP MAX997 1 No Yes No 8 SO/MAX Pin Configurations of data sheet. MAX999 1 appear No at endNo No 5 SOT23 Functional Diagrams continued at end of data sheet. UCSP is a trademark Maxim Integrated Products, Inc. Beyond-the-Rails is aoftrademark and MAX is a registered trademark of Maxim Integrated Products, Inc. Q 1 GND 2 5 VCC 4 IN- MAX999 IN+ 3 SOT23-5 Pin Configurations continued at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maximintegrated.com. 19-1129; Rev 6; 2/08 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ABSOLUTE MAXIMUM RATINGS Supply Voltage, VCC to GND................................... -0.3V to +6V All Other Pins..............................................-0.3V to (VCC + 0.3V) Current into Input Pins ......................................................20mA Duration of Output Short Circuit to GND or VCC .......Continuous Continuous Power Dissipation (TA = +70C) 5-Pin SOT23 (derate 7.1mW/C above +70C).......571mW/C 8-Pin SO (derate 5.88mW/C above +70C)...........471mW/C 8-Pin MAX (derate 4.10mW/C above +70C) ......330mW/C 14-Pin SO (derate 8.33mW/C above +70C).........667mW/C 16-Pin SO (derate 8.70mW/C above +70C).........696mW/C 16-Pin QSOP (derate 8.33mW/C above +70C)....667mW/C Operating Temperature Range MAX96_E/MAX99_E.........................................-40C to +85C MAX999AAUK ...............................................-40C to +125C Storage Temperature Range ............................ -65C to +160C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted. TMIN to TMAX is -40C to +85C for all E grade devices. For MAX999AAUK only, TMIN to TMAX is -40C to +125C.) (Note 1) PARAMETER Supply Voltage Input Common-Mode Voltage Range Input-Referred Trip Points SYMBOL VCC CONDITIONS Input Bias Current 2 MAX MIN TYP MAX UNITS 5.5 2.7 5.5 V VCMR (Note 2) -0.1 VCC + 0.1 -0.1 VCC + 0.1 V VTRIP VCM = -0.1V or 5.1V, VCC = 5V (Note 3) MAX, SOT23 2.0 3.5 6.5 MAX999AAUK 2.0 3.5 8.0 All other E packages 2.0 3.5 4.0 MAX, SOT23 0.5 1.5 4.5 MAX999AAUK 0.5 1.5 6.0 All other E packages 0.5 1.5 2.0 15 30 15 15 3.5 VOS IB VCM = -0.1V or 5.1V, VCC = 5V (Note 4) MAX, SOT23 VIN+ = VIN= 0V or VCC, All other E VCC = 5V packages VCC = 5.5V, VIN- = 0V, IIN+ = 100A Input Capacitance Common-Mode Input TYP 2.7 Differential Input Clamp Voltage Differential Input Impedance MIN TMIN to TMAX Inferred by PSRR Input-Referred Hysteresis Input Offset Voltage TA = +25C mV mV mV A 2.1 V 3 pF RIND VCC = 5V 8 k RINCM VCC = 5V 130 k Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ELECTRICAL CHARACTERISTICS (continued) (VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted. TMIN to TMAX is -40C to +85C for all E grade devices. For MAX999AAUK only, TMIN to TMAX is -40C to +125C.) (Note 1) PARAMETER SYMBOL TA = +25C CONDITIONS MIN Common-Mode Rejection Ratio Power-Supply Rejection Ratio Output High Voltage Output Low Voltage CMRR VCC = 5V, VCM = -0.1V to 5.1V (Note 5) MAX, SOT23 0.1 0.3 1.0 All other E packages 0.1 0.3 0.5 0.05 0.3 0.3 VOH ISOURCE = 4mA Capacitive Slew Current E grade VCC 0.52 VCC 0.52 MAX999AAUK VCC 0.52 VCC 0.55 E grade 0.52 0.52 MAX999AAUK 0.52 0.55 VOUT = 1.4V, VCC = 2.7V 30 ICC ISHDN t R, t F Logic-Input High VIH Logic-Input Low VIL Logic-Input Current IIL, IIH Propagation Delay tPD Differential Propagation Delay tPD Propagation-Delay Skew tSKEW Maxim Integrated 7.2 mV/V V mA pF 11 11 MAX962/MAX964, VCC = 5V 5 8 9 MAX997/MAX999E, VCC = 5V 5 6.5 6.5 MAX999AAUK, VCC = 5V 5 6.5 7.0 0.27 0.5 0.5 mA 1 20 A MAX961/MAX963/MAX964/ MAX997, VCC = 5V MAX961/MAX963/MAX964/ MAX997, VOUT = 5V and VCC - 5V Shutdown Output Leakage Current Rise/Fall Time 60 4 MAX961/MAX963, VCC = 5V Shutdown Supply Current per Comparator MAX V Output Capacitance Supply Current per Comparator TYP mV/V VCM = 0V (Note 6) ISINK = 4mA MIN UNITS MAX PSRR VOL TMIN to TMAX TYP VCC = 5V 2.3 ns VCC/2 + 0.4 VCC/2 + 0.4 VLOGIC = 0V or VCC 5mV overdrive (Note 7) mA V VCC/2 - 0.4 VCC/2 - 0.4 V 15 30 A E grade 4.5 7.0 8.5 MAX999AAUK 4.5 7.0 10 Between any two channels or outputs (Q/Q) 0.3 ns Between tPD- and tPD+ 0.3 ns ns 3 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ELECTRICAL CHARACTERISTICS (continued) (VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted. TMIN to TMAX is -40C to +85C for all E grade devices. For MAX999AAUK only, TMIN to TMAX is -40C to +125C.) (Note 1) PARAMETER Data-to-Latch Setup Time Latch-to-Data Hold Time SYMBOL CONDITIONS TA = +25C MIN TYP TMIN to TMAX MAX MIN TYP MAX UNITS tSU MAX961/MAX963 (Note 8) 5 5 ns tH MAX961/MAX963 (Note 8) 5 5 ns Latch Pulse Width tLPW MAX961/MAX963 (Note 8) 5 5 ns Latch Propagation Delay tLPD MAX961/MAX963 (Note 8) 10 10 ns Shutdown Time tOFF Delay until output is high-Z (> 10k) 150 ns Shutdown Disable Time tON Delay until output is valid 250 ns Note 1: The MAX961EUA/MAX962EUA/MAX997EUA/MAX999EUK are 100% production tested at TA = +25C; all temperature specifications are guaranteed by design. Note 2: Inferred by CMRR. Either input can be driven to the absolute maximum limit without false output inversion, provided that the other input is within the input voltage range. Note 3: The input-referred trip points are the extremities of the differential input voltage required to make the comparator output change state. The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis zone. (See Figure 1.) Note 4: Input offset voltage is defined as the mean of the trip points. Note 5: CMRR = (VOSL - VOSH) / 5.2V, where VOSL is the offset at VCM = -0.1V and VOSH is the offset at VCM = 5.1V. Note 6: PSRR = (VOS2.7 - VOS5.5) / 2.8V, where VOS2.7 is the offset voltage at VCC = 2.7V, and VOS5.5 is the offset voltage at VCC = 5.5V. Note 7: Propagation delay for these high-speed comparators is guaranteed by design characterization because it cannot be accurately measured using automatic test equipment. A statistically significant sample of devices is characterized with a 200mV step and 100mV overdrive over the full temperature range. Propagation delay can be guaranteed by this characterization, since DC tests ensure that all internal bias conditions are correct. For low overdrive conditions, VTRIP is added to the overdrive. Note 8: Guaranteed by design. 4 Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators __________________________________________Typical Operating Characteristics (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25C, unless otherwise noted.) 6.0 5.5 5.0 4.5 tPD+ 6.0 tPD- 5.8 5.6 MAX997toc03 tPD6 tPD+ 5 4 5.0 -40 10 20 30 40 50 60 70 80 90 100 -20 0 20 40 60 85 0 20 40 60 80 100 INPUT OVERDRIVE (mV) TEMPERATURE (C) CAPACITIVE LOAD (pF) PROPAGATION DELAY vs. SUPPLY VOLTAGE OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT OUTPUT LOW VOLTAGE vs. SINK CURRENT TA = +85C 2.75 tPD- 0.4 VOL (V) VOH (V) 5.5 0.5 TA = +25C TA = -40C 2.70 2.65 120 MAX997toc06 2.80 MAX997toc04 6.0 MAX997toc05 0 7 5.2 tPD+ 3.5 TA = -40C TA = +25C TA = +85C 0.3 0.2 2.60 0.1 2.55 tPD+ 0 2.50 5.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 1 10 100 1000 1 10,000 10 100 1000 10,000 SUPPLY VOLTAGE (V) SOURCE CURRENT (A) SINK CURRENT (A) MAX961/MAX963 SUPPLY CURRENT PER COMPARATOR vs. SUPPLY VOLTAGE MAX962/MAX964 SUPPLY CURRENT PER COMPARATOR vs. SUPPLY VOLTAGE MAX997/MAX999 SUPPLY CURRENT PER COMPARATOR vs. SUPPLY VOLTAGE TA = +85C 7.0 TA = +25C 6.5 6 TA = +85C 5 8 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 7.5 9 TA = +25C TA = -40C MAX9997toc7C 7 MAX997toc07A 8.0 MAX997toc07B PROPAGATION DELAY (ns) 6.2 5.4 tPD- SUPPLY CURRENT (mA) 6.4 PROPAGATION DELAY (ns) 6.5 8 MAX997toc0202 6.6 PROPAGATION DELAY (ns) 7.0 PROPAGATION DELAY (ns) 6.8 MAX997toc01 7.5 4.0 PROPAGATION DELAY vs. CAPACITIVE LOAD PROPAGATION DELAY vs. TEMPERATURE PROPAGATION DELAY vs. INPUT OVERDRIVE 7 6 TA = +25C TA = +85C 5 4 TA = -40C 4 TA = -40C 6.0 3 2 3 4 SUPPLY VOLTAGE (V) Maxim Integrated 5 6 3 2 3 4 SUPPLY VOLTAGE (V) 5 6 2 3 4 5 6 SUPPLY VOLTAGE (V) 5 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ____________________________Typical Operating Characteristics (continued) (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25C, unless otherwise noted.) MAX961/MAX963/MAX964/MAX997 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE VOLTAGE TRIP POINT/INPUT OFFSET VOLTAGE vs. TEMPERATURE 160 1 VOS 0 -1 -2 20 0 40 MAX997toc10 VOS -1 VTRIP- 0 20 40 60 85 2 3 4 6 5 TEMPERATURE (C) SUPPLY VOLTAGE (V) INPUT BIAS CURRENT (IB+, IB-) vs. COMMON-MODE VOLTAGE INPUT BIAS CURRENT/INPUT OFFSET CURRENT vs. TEMPERATURE SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE 2 0 TA = -40C -4 -6 3.5 IB+ 3.0 2.5 2.0 1.5 1.0 0.5 0 1 2 3 4 5 100 OUTPUT SHORTED TO GND (SOURCING) 80 60 40 0 -0.5 6 OUTPUT SHORTED TO VCC (SINKING) 120 20 IOS 0 -8 140 MAX997toc13 MAX997toc12 IB- SHORT-CIRCUIT CURRENT (mA) TA = +25C 4.0 INPUT BIAS/OFFSET CURRENT (A) 4 MAX997toc11 VCC = 5.0V VIN = VOS NEGATIVE VALUES REPRESENT CURRENT FLOWING INTO THE DEVICE TA = +85C -1 0 TEMPERATURE (C) 6 IB+, IB- (A) -20 -40 80 60 8 -2 1 -4 -3 60 -20 VTRIP+ -3 VTRIP-40 2 -2 VCC = 2.7V 110 3 TRIP POINT / VOS (mV) TRIP POINT / VOS (mV) 210 VTRIP+ 2 4 MAX997toc09 VCC = 5.0V 260 3 MAX997toc08 SHUTDOWN SUPPLY CURRENT (A) 310 VOLTAGE TRIP POINT/INPUT OFFSET VOLTAGE vs. SUPPLY VOLTAGE -40 -20 VCM (V) 0 20 40 60 -40 80 -20 0 20 40 60 80 TEMPERATURE (C) TEMPERATURE (C) MAX997toc14 50MHz RESPONSE VIN = 100mVP-P INPUT 50mV/div VOS OUTPUT 1V/div GND 5ns/div 6 Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ____________________________Typical Operating Characteristics (continued) (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25C, unless otherwise noted.) PROPAGATION DELAY (tPD-) PROPAGATION DELAY (tPD+) MAX997toc15 MAX997toc16 GND INPUT 50mV/div INPUT 50mV/div GND OUTPUT 1V/div OUTPUT 1V/div GND GND 5ns/div 5ns/div ______________________________________________________________Pin Description PIN NAME FUNCTION MAX997 MAX999 MAX961 MAX962 MAX963 MAX964 1, 5 -- -- -- -- -- 2 4 2 2 1 1 3 3 1 1 2 2 -- -- 4 -- 3, 5 -- LE, LEA, LEB 4 2 5 5 4, 11 12 GND Ground -- -- -- -- -- 16 N.C. No Connection. Connect to GND to prevent parasitic feedback. -- -- -- 4 6 3 INB- Comparator B Inverting Input -- -- -- 3 7 4 INB+ Comparator B Noninverting Input -- -- -- -- -- -- -- 5 INC- Comparator C Inverting Input -- 6 INC+ Comparator C Noninverting Input N.C. IN-, INA- No Connection. Not internally connected. Comparator A Inverting Input IN+, INA+ Comparator A Noninverting Input Latch-Enable Input. The output latches when LE_ is high. The latch is transparent when LE_ is low. -- -- -- -- -- -- -- 7 IND- Comparator D Inverting Input -- -- -- -- -- 8 IND+ Comparator D Noninverting Input 8 -- 3 -- 8 9 SHDN Shutdown Input. The device shuts down when SHDN is high. -- -- -- 6 9 14 QB Comparator B Output -- -- -- -- 11 QC Comparator C Output -- -- -- -- 10 QD Comparator D Output -- -- -- -- -- -- 10 -- QB Comparator B Complementary Output 7 5 8 8 12 13 VCC Positive Supply Input (VCC to GND must be 5.5V) 6 1 6 7 13 15 Q, QA Comparator A TTL Output -- -- 7 -- 14 -- Q, QA Comparator A Complementary Output Maxim Integrated 7 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators _______________Detailed Description The MAX961-MAX964/MAX997/MAX999 single-supply comparators feature internal hysteresis, ultra-highspeed operation, and low power consumption. Their outputs are guaranteed to pull within 0.52V of either rail without external pullup or pulldown circuitry. Beyondthe-Rails input voltage range and low-voltage, singlesupply operation make these devices ideal for portable equipment. These comparators all interface directly to CMOS logic. Timing Most high-speed comparators oscillate in the linear region because of noise or undesirable parasitic feedback. This can occur when the voltage on one input is close to or equal to the voltage on the other input. These devices have a small amount of internal hysteresis to counter parasitic effects and noise. The added hysteresis of the MAX961-MAX964/MAX997/ MAX999 creates two trip points: one for the rising input voltage and one for the falling input voltage (Figure 1). The difference between the trip points is the hysteresis. When the comparator's input voltages are equal, the hysteresis effectively causes one comparator input voltage to move quickly past the other, thus taking the input out of the region where oscillation occurs. Standard comparators require hysteresis to be added with external resistors. The fixed internal hysteresis eliminates these resistors. The MAX961/MAX963 include internal latches that allow storage of comparison results. LE has a high input impedance. If LE is low, the latch is transparent (i.e., the comparator operates as though the latch is not present). The comparator's output state is stored when LE is pulled high. All timing constraints must be met when using the latch function (Figure 2). Input Stage Circuitry The MAX961-MAX964/MAX997/MAX999 include internal protection circuitry that prevents damage to the precision input stage from large differential input voltages. This protection circuitry consists of two groups of three front-to-back diodes between IN+ and IN-, as well as two 200 resistors (Figure 3). The diodes limit the differential voltage applied to the comparator's internal circuitry to no more than 3VF, where VF is the diode's forward-voltage drop (about 0.7V at +25C). VTRIP+ VIN+ VHYST VOS = VTRIP+ + VTRIP2 VIN- = 0V VTRIP- VOH Q VOL Q VOH VOL Figure 1. Input and Output Waveforms, Noninverting Input Varied 8 Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators tSU tH DIFFERENTIAL INPUT VOLTAGE VOS tLPW VCC VCC 2 LE 0V tPD tLPD VOH VCC 2 Q VOL VCC 2 Q tSKEW tSKEW Figure 2. MAX961/MAX963 Timing Diagram MAX961-MAX964 MAX997 MAX999 200 IN+ IN200 TO INTERNAL CIRCUITRY TO INTERNAL CIRCUITRY For a large differential input voltage (exceeding 3VF), this protection circuitry increases the input bias current at IN+ (source) and IN- (sink). (IN+ - IN-) - 3VF Input current = ---------------- 2 x 200 Input currents with large differential input voltages should not be confused with input bias currents (IB). As long as the differential input voltage is less than 3VF, this input current is less than 2IB. The input circuitry allows the MAX961-MAX964/ MAX997/MAX999's input common-mode range to extend 100mV beyond both power-supply rails. The output remains in the correct logic state if one or both inputs are within the common-mode range. Taking either input outside the common-mode range causes the input to saturate and the propagation delay to increase. Figure 3. Input Stage Circuitry Maxim Integrated 9 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators VCC ISOURCE MAX961-MAX964 MAX997 MAX999 Q, Q ISINK GND Figure 5. MAX961 PCB Layout Figure 4. Output Stage Circuitry Output Stage Circuitry The MAX961-MAX964/MAX997/MAX999 contain a current-driven output stage, as shown in Figure 4. During an output transition, ISOURCE or ISINK is pushed or pulled to the output pin. The output source or sink current is high during the transition, creating a rapid slew rate. Once the output voltage reaches VOH or VOL, the source or sink current decreases to a small value, capable of maintaining the VOH or VOL in static condition. This decrease in current conserves power after an output transition has occurred. One consequence of a current-driven output stage is a linear dependence between the slew rate and the load capacitance. A heavy capacitive load slows down the voltage output transition. Shutdown Mode When SHDN is high, the MAX961/MAX963/MAX964/ MAX997 shut down. When shut down, the supply current drops to 270A per comparator, and the outputs become high impedance. SHDN has a high input impedance. Connect SHDN to GND for normal operation. Exit shutdown with LE low; otherwise, the output is indeterminate. 10 __________Applications Information Circuit Layout and Bypassing The MAX961-MAX964/MAX997/MAX999's high bandwidth requires a high-speed layout. Follow these layout guidelines: 1) Use a PCB with a good, unbroken, low-inductance ground plane. 2) Place a decoupling capacitor (a 0.1F ceramic surface-mount capacitor is a good choice) as close to VCC as possible. 3) On the inputs and outputs, keep lead lengths short to avoid unwanted parasitic feedback around the comparators. Keep inputs away from outputs. Keep impedance between the inputs low. 4) Solder the device directly to the printed circuit board rather than using a socket. 5) Refer to Figure 5 for a recommended circuit layout. 6) For slow-moving input signals, take care to prevent parasitic feedback. A small capacitor (1000pF or less) placed between the inputs can help eliminate oscillations in the transition region. This capacitor causes negligible degradation to t PD when the source impedance is low. Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Pin Configurations TOP VIEW 8 VCC INA+ 1 7 Q INA- 2 SHDN 3 6 Q LE 4 5 GND IN+ 1 IN- 2 MAX961 8 VCC 7 QA INB+ 3 6 QB INB- 4 5 GND MAX962 SO/MAX SO/MAX INA- 1 14 QA INA- 1 16 N.C. INA+ 2 13 QA INA+ 2 15 QA LEA 3 12 VCC INB- 3 14 QB 11 GND INB+ 4 10 QB INC- 5 12 GND INB- 6 9 QB INC+ 6 11 QC INB+ 7 8 SHDN IND- 7 10 QD IND+ 8 9 GND 4 MAX963 LEB 5 MAX964 13 VCC 8 SHDN 7 VCC IN+ 3 6 Q GND 4 5 N.C. N.C. 1 IN- 2 MAX997 SO/MAX SHDN SO SO/QSOP ___________________Chip Information MAX961/MAX962 TRANSISTOR COUNT: 286 MAX963/MAX964 TRANSISTOR COUNT: 607 MAX997/MAX999 TRANSISTOR COUNT: 142 Maxim Integrated 11 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Package Information 4X S 8 E O0.500.1 8 INCHES DIM A A1 A2 b H c D e E H 0.60.1 1 L 1 0.60.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.010 0.014 0.005 0.007 0.116 0.120 0.0256 BSC 0.116 0.120 0.188 0.198 0.016 0.026 6 0 0.0207 BSC 8LUMAXD.EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95 0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0 6 0.5250 BSC TOP VIEW A1 A2 e FRONT VIEW A c b L SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, 8L uMAX/uSOP APPROVAL DOCUMENT CONTROL NO. 21-0036 12 REV. J 1 1 Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Package Information (continued) QSOP.EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Maxim Integrated 13 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Package Information (continued) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.053 0.069 0.004 0.010 0.014 0.019 0.010 0.007 0.050 BSC 0.157 0.150 0.228 0.244 0.050 0.016 MAX MIN 1.75 1.35 0.25 0.10 0.49 0.35 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 1.27 VARIATIONS: 1 INCHES TOP VIEW DIM D D D MIN 0.189 0.337 0.386 MAX 0.197 0.344 0.394 MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC D A B e C 0-8 A1 L FRONT VIEW SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, .150" SOIC APPROVAL DOCUMENT CONTROL NO. 21-0041 14 REV. B 1 1 Maxim Integrated MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Package Information (continued) SOT-23 5L .EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Maxim Integrated 15 MAX961-MAX964/MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 9/96 Initial release 1 12/96 Added 8-pin MAX packages. Correct minor errors. 1, 2, 3 -- 2 3/97 Added dual and quad MAX963/MAX964 packages. 1, 2, 3 3 7/97 Added new MAX997 and MAX999 parts. 4 3/99 New wafer fab/process change to CB20. Update specifications and TOCs. 1, 2, 3 2, 3, 4, 5, 6 5 2/07 Added new Current into Input Pins in the Absolute Maximum Ratings. 2 6 12/07 Added new automotive grade MAX999AAUK part and specifications. 1, 2, 3 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 16 (c) Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 Maxim Integrated The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc.