19-0229; Rev 3; 6/97 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators ____________________________Features ♦ Available in µMAX Package ♦ Optimized for 3V and 5V Applications (operation down to 2.7V) ♦ Fast, 80ns Propagation Delay (5mV overdrive) ♦ Rail-to-Rail Input Voltage Range The input common-mode range of the MAX941/ MAX942/MAX944 extends beyond both power-supply rails. The outputs pull to within 0.4V of either supply rail without external pull-up circuitry, making these devices ideal for interface with both CMOS and TTL logic. All input and output pins can tolerate a continuous shortcircuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The MAX941 features latch enable and device shutdown. ♦ Low Power: 1mW Power Dissipation per Comparator (3V) 350µA Supply Current ♦ Low, 1mV Offset Voltage ♦ Internal Hysteresis for Clean Switching ♦ Outputs Swing 200mV of Power Rails ♦ CMOS/TTL-Compatible Outputs ♦ Output Latch (MAX941 only) The single MAX941 and dual MAX942 are offered in a tiny µMAX package. Both the single and dual MAX942 are available in 8-pin DIP and SO packages. The quad MAX944 comes in 14-pin DIP and narrow SO packages. ♦ Shutdown Function (MAX941 only) ______________Ordering Information PART ________________________Applications 3V/5V Systems Battery-Powered Systems Threshold Detectors/Discriminators Line Receivers Zero-Crossing Detectors TEMP. RANGE PIN-PACKAGE MAX941CPA 0°C to +70°C 8 Plastic DIP MAX941CSA MAX941C/D MAX941EPA MAX941ESA MAX941EUA MAX941MJA 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 8 SO Dice* 8 Plastic DIP 8 SO 8 µMAX 8 CERDIP Ordering Information continued at end of data sheet. * Dice are specified at TA = +25°C, DC parameters only. Sampling Circuits __________________________________________________________Pin Configurations TOP VIEW MAX941 MAX942 V+ 1 8 N.C. OUTA 1 IN+ 2 7 OUT INA- 2 IN- 3 6 GND INA+ 3 SHDN 4 5 LATCH GND 4 DIP/SO/µMAX OUTA 1 A B DIP/SO/µMAX INA- 2 8 V+ 7 OUTB 6 INB- 5 INB+ INA+ 3 14 OUTD A V+ 4 D INB- 6 C OUTB 7 12 IND+ 11 GND MAX944 INB+ 5 B 13 IND- 10 INC+ 9 INC- 8 OUTC DIP/SO ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. MAX941/MAX942/MAX944 _______________General Description The MAX941/MAX942/MAX944 are single/dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350µA per comparator. MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators ABSOLUTE MAXIMUM RATINGS Power-Supply Ranges Supply Voltage V+ to GND ................................................+7V Differential Input Voltage ..........................-0.3V to (V+ + 0.3V) Common-Mode Input Voltage ..................-0.3V to (V+ + 0.3V) –————– LATCH Input (MAX941 only) ....................-0.3V to (V+ + 0.3V) ———– SHDN Control Input (MAX941 only) .........-0.3V to (V+ + 0.3V) Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW 8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW 8-Pin CERDIP (derate 8.00mW/°C above +70°C)........640mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)..800mW 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW 14-Pin CERDIP (derate 9.09mW/°C above +70°C)......727mW Operating Temperature Ranges MAX94_C_ _ .......................................................0°C to +70°C MAX94_E_ _.....................................................-40°C to +85°C MAX94_MJ _ ..................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C 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 (V+ = 2.7V to 6.0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C. See Note 14.) PARAMETER Positive Supply Voltage Input Voltage Range Input-Referred Trip Points Input Offset Voltage Input Bias Current Input Offset Current Common-Mode Rejection Ratio Power-Supply Rejection Ratio SYMBOL V+ VCMR VTRIP VOS IB IOS CMRR PSRR Output High Voltage VOH Output Low Voltage VOL Output Leakage Current 2 ILEAK CONDITIONS (Note 1) VCM = 0V or VCM = V+ (Note 2) VCM = 0V or VCM = V+ (Note 3) MIN 2.7 TYP -0.2 TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX VIN = VOS, VCM = 0V or VCM = V+ (Note 4) 2.7V ≤ V+ ≤ 6.0V, VCM = 0V UNITS V V+ + 0.2 V MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 1 3 MAX941EUA/MAX942EUA 1 4 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 4 MAX941EUA/MAX942EUA 6 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 1 2 MAX941EUA/MAX942EUA 1 3 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 3 MAX941EUA/MAX942EUA 5.5 MAX94_C 150 300 MAX94_E/M 150 400 10 100 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 80 300 MAX941EUA/MAX942EUA 80 800 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ 80 300 80 350 VIN = VOS, VCM = 0V or V+ (Note 5) MAX 6.0 MAX941EUA/MAX942EUA ISOURCE = 400µA V+ - 0.4 V+ - 0.2 ISOURCE = 4mA V+ - 0.4 V+ - 0.3 0.2 0.4 ISINK = 4mA 0.3 0.4 _______________________________________________________________________________________ mV mV mV nA nA µV/V µV/V V ISINK = 400µA (Note 6) mV 1 V µA High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators (V+ = 2.7V to 6.0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C. See Note 14.) PARAMETER SYMBOL CONDITIONS V+ = 3V Supply Current per Comparator ICC V+ = 5V TYP MAX MAX941 MIN 380 600 MAX942/MAX944 350 500 MAX941 430 700 MAX942/MAX944 400 600 MAX941 only, shutdown mode (V+ = 3V) Power Dissipation per Comparator 12 60 MAX941 1.0 4.2 MAX942/MAX944 1.0 3.6 MAX94_C 80 150 MAX94_E/M 80 200 UNITS µA PD (Note 7) Propagation Delay tPD+, tPD- (Note 8) Differential Propagation Delay dtPD (Note 9) 10 ns (Note 10) 10 ns V+ –––– 2 V Propagation Delay Skew V+ –––– + 0.4 2 mW ns Logic Input Voltage High VIH (Note 11) Logic Input Voltage Low VIL (Note 11) V+ –––– 2 V+ –––– - 0.4 2 V VLOGIC = 0V or V+ (Note 11) 2 10 µA Logic Input Current IIL, IIH Data-to-Latch Setup Time tS (Note 12) 20 ns Latch-to-Data Hold Time tH (Note 12) 30 ns Latch Pulse Width tLPW MAX941 only 50 ns Latch Propagation Delay tLPD MAX941 only 70 ns Shutdown Time (Note 13) 3 µs Shutdown Disable Time (Note 13) 10 µs Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: Note 7: Note 8: Note 9: Note 10: Note 11: Note 12: Note 13: Note 14: Inferred from the CMRR test. Note also that either or both inputs can be driven to the absolute maximum limit (0.3V beyond either supply rail) without damage or false output inversion. 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. VOS is defined as the center of the input-referred hysteresis zone. See Figure 1. The polarity of IB reverses direction as VCM approaches either supply rail. See Typical Operating Characteristics for more detail. Specified over the full common-mode range (VCMR). Applies to the MAX941 only when in shutdown mode. Specification is for current flowing into or out of the output pin for VOUT driven to any voltage from V+ to GND. Typical power dissipation specified with V+ = 3V; maximum with V+ = 6V. Parameter is guaranteed by design and specified with VOD = 5mV and CLOAD = 15pF in parallel with 400µA of sink or source current. VOS is added to the overdrive voltage for low values of overdrive. See Figure 2. Specified between any two channels in the MAX942/MAX944. Specified as the difference between tPD+ and tPD- for any one comparator. –———– –————– Applies to the MAX941 only for both SHDN and LATCH pins. –————– –————– Applies to the MAX941 only. Comparator is active with LATCH pin driven high and is latched with LATCH pin driven low. See Figure 2. –———– –———– Applicable to the MAX941 only. Comparator is active with SHDN pin driven high and is in shutdown with SHDN pin driven –———– low. Shutdown disable time is the delay when SHDN is driven high to the time the output is valid. The MAX941EUA and MAX942EUA are 100% production tested at TA = +25°C. Specifications over temperature are guaranteed by design. _______________________________________________________________________________________ 3 MAX941/MAX942/MAX944 ELECTRICAL CHARACTERISTICS (continued) __________________________________________Typical Operating Characteristics (V+ = 3.0V, TA = +25°C, unless otherwise noted.) tPD- 60 50 RS = 10Ω CLOAD = 15pF 30 25 75 50 80 50 60 100 1k 10k MAX941-03 MAX941-02 100 10 tPDRS = 10Ω VOD = 5mV 0 100k 100 300 200 MAX941-04 100 80 tPD+ 90 RS = 10Ω CLOAD = 15pF VOD = 5mV 3.0 500 400 OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT TA = +125°C TA = +25°C 2.9 80 TA = -55°C tPD70 VOH (V) PROPAGATION DELAY (ns) 60 2.8 2.7 50 RS = 10Ω CLOAD = 15pF VOD = 5mV 40 2.6 30 2.5 2 20 40 60 80 100 120 140 3 4 5 6 1 10 100 1000 10000 TEMPERATURE (°C) SUPPLY VOLTAGE (V) SOURCE CURRENT (µA) OUTPUT LOW VOLTAGE vs. SINK CURRENT MAX941 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX942 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE 600 MAX941-07 0.5 SUPPLY CURRENT (µA) 0.3 TA = -55°C TA = +25°C TA = +125°C 500 0.4 TA = +25°C 400 300 TA = -55°C 200 1000 SINK CURRENT (µA) 10000 500 TA = -55°C 300 0 100 TA = +25°C 600 400 TA = +125°C 10 TA = +125°C 700 100 0 800 SUPPLY CURRENT (µA) PROPAGATION DELAY (ns) 100 PROPAGATION DELAY vs. SUPPLY VOLTAGE 90 1 120 PROPAGATION DELAY vs. TEMPERATURE -60 -40 -20 0 4 CLOAD = 15pF VOD = 5mV 140 CAPACITIVE LOAD (pF) 100 0.1 150 100 110 0.2 tPD- tPD+ SOURCE IMPEDANCE (Ω) 120 60 200 160 INPUT OVERDRIVE (mV) 130 70 250 MAX941-05 0 tPD+ MAX941-08 40 300 MAX941-09 70 180 PROPAGATION DELAY (ns) tPD+ 80 350 PROPAGATION DELAY (ns) 90 PROPAGATION DELAY (ns) 400 MAX941-01 100 PROPAGATION DELAY vs. CAPACITIVE LOAD PROPAGATION DELAY vs. SOURCE IMPEDANCE MAX941-06 PROPAGATION DELAY vs. INPUT OVERDRIVE VOL (V) MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators 2 3 4 5 SUPPLY VOLTAGE (V) 6 2 3 4 5 SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 6 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators TA = +25°C 1.25 1.00 2 1 0 VCM- TA = -55°C -1 0.75 VOLTAGE TRIP POINTS / INPUT OFFSET VOLTAGE vs. TEMPERATURE 500 0 VOS -500 VTRIP- -1000 -1500 VCM = 0.0V 20 40 60 80 100 120 140 MAX941-12 OUTPUT SHORTED TO GND (SOURCING) 10 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) INPUT BIAS CURRENT / INPUT OFFSET CURRENT vs. TEMPERATURE INPUT BIAS CURRENT (IB+, IB-) vs. VCM 250 250 TA = -55°C 200 200 IB+ TA = +25°C 150 150 IB100 TA = +125°C VIN+ = VINNEGATIVE VALUES REPRESENT CURRENT FLOWING INTO THE DEVICE 100 50 V+ = 6V 0 50 -50 IOS 0 -2000 -100 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) MAX941 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 40 SHUTDOWN SUPPLY CURRENT (µA) 20 TEMPERATURE (°C) IB+, IB- (nA) VTRIP+ INPUT BIAS / OFFSET CURRENT (nA) MAX941-13 1000 30 0 -60 -40 -20 0 6 MAX941-14 3 4 5 SUPPLY VOLTAGE (V) OUTPUT SHORTED TO V+ (SINKING) V+ = 6.0V 0 1 2 3 4 5 COMMON-MODE VOLTAGE (V) 6 10MHz RESPONSE MAX941-17 2 TRIP POINTS / VOS (µV) 40 MAX941-16 1.50 MAX941-11 VCM+ 3 INPUT VOLTAGE RANGE (V) TA = +125°C V+ = 3.0V SHORT-CIRCUIT OUTPUT CURRENT (mA) 1.75 SUPPLY CURRENT (mA) 4 MAX941-10 2.00 SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE INPUT VOLTAGE RANGE vs. TEMPERATURE MAX944 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE 30 VOS 20 V+ INPUT 50mV/div OUTPUT 1V/div V+ = 2.7V 10 GND 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) 50ns/div _______________________________________________________________________________________ 5 MAX941/MAX942/MAX944 ____________________________Typical Operating Characteristics (continued) (V+ = 3.0V, TA = +25°C, unless otherwise noted.) MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators _____________________________Typical Operating Characteristics (continued) (V+ = 3.0V, TA = +25°C, unless otherwise noted.) PROPAGATION DELAY (tPD+) PROPAGATION DELAY (tPD-) INPUT 50mV/div VOD VOS INPUT 50mV/div VOS VOD V+ V+ OUTPUT 1V/div V+ 2 GND OUTPUT 1V/div V+ 2 GND 20ns/div 20ns/div INPUT STEP = 100mV VOD = +5mV tPD+ tPD- INPUT STEP = 100mV VOD = -5mV ______________________________________________________________Pin Description PIN NAME 6 FUNCTION MAX941 MAX942 MAX944 — 1 1 OUTA Comparator A output — 2 2 INA- Comparator A inverting input — 3 3 INA+ Comparator A noninverting input 1 8 4 V+ — 5 5 INB+ Comparator B noninverting input — 6 6 INB- Comparator B inverting input — 7 7 OUTB Comparator B output — — 8 OUTC Comparator C output — — 9 INC- Comparator C inverting input — — 10 INC+ Comparator C noninverting input 6 4 11 GND Ground — — 12 IND+ Comparator D noninverting input — — 13 IND- Comparator D inverting input — — 14 OUTD 2 — — IN+ Noninverting input 3 — — IN- Inverting input 4 — — ———– SHDN ———– Shutdown: MAX941 is active when SHDN is driven high; MAX941 is in shutdown ———– when SHDN is driven low. 5 — — ————– LATCH ————– ————– The output is latched when LATCH is low. The latch is transparent when LATCH is high. 7 — — OUT Comparator output 8 — — N.C. No connect—not internally connected Positive supply (V+ to GND must be ≤ 7V) Comparator D output _______________________________________________________________________________________ High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators VHYST VIN+ V + VTRIPVOS = TRIP+ 2 VIN- = 0V VTRIP- VOH COMPARATOR OUTPUT VOL Shutdown Mode (MAX941 Only) –———– The MAX941 shuts down when SHDN is low. When shut down, the supply current drops to less than 60µA, and the three-state output becomes high impedance. The –———– S H D N pin has a high input impedance. Connect –———– SHDN to V+ for normal operation. Exit shutdown with ————– LATCH high; otherwise, the output will be indeterminate. Input Stage Circuitry Figure 1. Input and Output Waveform, Noninverting Input Varied _______________Detailed Description The MAX941/MAX942/MAX944 single-supply comparators feature internal hysteresis, high speed, and low power. Their outputs are guaranteed to pull within 0.4V of either supply rail without external pull-up or pulldown circuitry. Rail-to-rail input voltage range and lowvoltage single-supply operation make these devices ideal for portable equipment. The MAX941/MAX942/ MAX944 interface directly to CMOS and TTL logic. Timing Most high-speed comparators oscillate in the linear region because of noise or undesired parasitic feedback. This tends to occur when the voltage on one input is at or equal to the voltage on the other input. To counter the parasitic effects and noise, the MAX941/ MAX942/MAX944 have internal hysteresis. The hysteresis in a comparator 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 MAX941/MAX942/MAX944’s fixed internal hysteresis The MAX941/MAX942/MAX944 include internal protection circuitry that prevents damage to the precision input stage from large differential input voltages. This protection circuitry consists of four back-to-back diodes between IN+ and IN- as well as two 2.5kΩ resistors (Figure 3). The diodes limit the differential voltage applied to the internal circuitry of the comparators to be no more than 4VF, where VF is the forward voltage drop of the diode (about 0.7V at +25°C). For a large differential input voltage (exceeding 4VF), this protection circuitry increases the input bias current at IN+ (source) and IN- (sink). (IN+ - IN-) - 4VF 2 x 2.5kΩ Input current with large differential input voltages should not be confused with input bias current (IB). As long as the differential input voltage is less than 4VF, this input current is equal to IB. The protection circuitry also allows for the input common-mode range of the MAX941/MAX942/MAX944 to extend beyond both power-supply rails. The output is in the correct logic state if one or both inputs are within the common-mode range. Input Current = _______________________________________________________________________________________ 7 MAX941/MAX942/MAX944 VTRIP+ eliminates these resistors and the equations needed to determine appropriate values. Figure 1 illustrates the case where IN- is fixed and IN+ is varied. If the inputs were reversed, the figure would look the same, except the output would be inverted. The MAX941 includes an internal latch that allows stor————– age of comparison results. The LATCH pin has a high ————– input impedance. If LATCH is high, the latch is transparent (i.e., the comparator operates as though the latch is not present). The comparator's output state is stored when L—A—T—C—H– is pulled low. All timing constraints must be met when using the latch function (Figure 2). MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators tS tH V+ VOS DIFFERENTIAL INPUT VOLTAGE 0V tLPW V+ LATCH V+ 2 0V VOH OUT tPD tLPD V+ 2 VOL Figure 2. MAX941 Timing Diagram with Latch Operator Output Stage Circuitry The MAX941/MAX942/MAX944 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 static condition. This significant 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 will slow down a voltage output transition. This can be useful in noisesensitive applications where fast edges may cause interference. 8 __________Applications Information Circuit Layout and Bypassing The high gain bandwidth of the MAX941/MAX942/ MAX944 requires design precautions to realize the comparators’ full high-speed capability. The recommended precautions are: 1) Use a printed circuit board with a good, unbroken, low-inductance ground plane. 2) Place a decoupling capacitor (a 0.1µF ceramic capacitor is a good choice) as close to V+ as possible. 3) Pay close attention to the decoupling capacitor’s bandwidth, keeping leads short. 4) On the inputs and outputs, keep lead lengths short to avoid unwanted parasitic feedback around the comparators. 5) Solder the device directly to the printed circuit board instead of using a socket. _______________________________________________________________________________________ High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators 2.5k IN+ VCC MAX941/MAX942/MAX944 MAX941 MAX942 MAX944 MAX941 MAX942 MAX944 ISOURCE TO INTERNAL CIRCUITRY OUTPUT TO INTERNAL CIRCUITRY IN– 2.5k ISINK 0V Figure 3. Input Stage Circuitry Figure 4. Output Stage Circuitry VDD = 3.3V V+ = 3V VREFC SERIAL DIGITAL INPUT SDI VDD 10k 8-BIT DAC MAX512 3V COAX LINE 20k MAX941 DACOUTC GND VSS 0V CLEAN DIGITAL SIGNAL MAX941 20k ANALOG IN Figure 5. 3.3V Digitally Controlled Threshold Detector Figure 6. Line Transceiver Application _______________________________________________________________________________________ 9 MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators _Ordering Information (continued) PART TEMP. RANGE _________________Chip Topographies MAX941 PIN-PACKAGE MAX942CPA 0°C to +70°C 8 Plastic DIP MAX942CSA MAX942C/D MAX942EPA MAX942ESA MAX942EUA MAX942MJA MAX944CPD MAX944CSD MAX944EPD MAX944ESD MAX944MJD 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 8 SO Dice* 8 Plastic DIP 8 SO 8 µMAX 8 CERDIP 14 Plastic DIP 14 SO 14 Plastic DIP 14 SO 14 CERDIP * Dice are specified at TA = +25°C, DC parameters only. V+ OUT IN+ 0.056" (1.42mm) INGND LATCH SHDN 0.058" (1.47mm) MAX942 INB- INB+ OUTB 0.062" (1.57mm) V+ GND OUTA INA+ 0.064" (1.63mm) INA- TRANSISTOR COUNT: 134(MAX941), 190(MAX942) SUBSTRATE CONNECTED TO GND 10 ______________________________________________________________________________________ High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators 8LUMAXD.EPS ______________________________________________________________________________________ 11 MAX941/MAX942/MAX944 ________________________________________________________Package Information ___________________________________________Package Information (continued) PDIPN.EPS MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1997 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.