19-0229; Rev 8; 11/08 High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators ____________________________Features 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. 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 pullup 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. ♦ Available in µMAX Package for Automotive Applications Internal hysteresis ensures clean output switching, even with slow-moving input signals. The MAX941 features latch enable and device shutdown. ♦ CMOS/TTL-Compatible Outputs 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) ♦ Optimized for 3V and 5V Applications (Operation Down to 2.7V) ♦ Fast, 80ns Propagation Delay (5mV Overdrive) ♦ Rail-to-Rail Input Voltage Range ♦ Low 350µA Supply Current per Comparator ♦ Low, 1mV Offset Voltage ♦ Internal Hysteresis for Clean Switching ♦ Outputs Swing 200mV of Power Rails ♦ Output Latch (MAX941 Only) Ordering Information PART ________________________Applications TEMP RANGE PINPACKAGE 8 Plastic DIP MAX941CPA 0°C to +70°C 3V/5V Systems MAX941CSA 0°C to +70°C Battery-Powered Systems MAX941EPA -40°C to +85°C 8 Plastic DIP Threshold Detectors/Discriminators MAX941ESA -40°C to +85°C 8 SO MAX941EUA-T -40°C to +85°C 8 µMAX MAX941AUA-T -40°C to +125°C 8 µMAX Line Receivers Zero-Crossing Detectors 8 SO Ordering Information continued at end of data sheet. Sampling Circuits µMAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configurations TOP VIEW MAX941 MAX942 OUTA 1 INA- 2 V+ 1 8 N.C. OUTA 1 8 V+ IN+ 2 7 OUT INA- 2 7 OUTB IN- 3 6 GND INA+ 3 6 INB- SHDN 4 5 LATCH GND 4 5 INB+ DIP/SO/μMAX A B DIP/SO/μMAX INA+ 3 14 OUTD A V+ 4 D B C OUTB 7 12 IND+ 11 GND MAX944 INB+ 5 INB- 6 13 IND- 10 INC+ 9 INC- 8 OUTC DIP/SO ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX941/MAX942/MAX944 General Description 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 .............................................+6.5V 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) Current Into Input Pins..................................................±20mA 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 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)..800mW 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW Operating Temperature Ranges MAX94_C_ _ .......................................................0°C to +70°C MAX94_E_ _.....................................................-40°C to +85°C MAX94_AUA ..................................................-40°C to +125°C MAX942MSA..................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+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 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14) PARAMETER Positive Supply Voltage Input Voltage Range SYMBOL CONDITIONS V+ VCMR VTRIP (Note 1) -0.2 VCM = 0 or VCM = V+ (Note 2) TA = TMIN to TMAX TA = +25°C Input Offset Voltage Input Bias Current Input Offset Current Input Differential Clamp Voltage Common-Mode Rejection Ratio Power-Supply Rejection Ratio VOS IB IOS VCLAMP CMRR PSRR Output High Voltage VOH Output Low Voltage VOL Output Leakage Current 2 ILEAK TYP 2.7 TA = +25°C Input-Referred Trip Points MIN VCM = 0 or VCM = V+ (Note 3) TA = TMIN to TMAX MAX UNITS 5.5 V V+ + 0.2 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA 1 3 MAX941_UA/MAX942_UA 1 4 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA 4 MAX941_UA/MAX942_UA 6 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA 1 2 MAX941_UA/MAX942_UA 1 3 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA 3 MAX941_UA/MAX942_UA 5.5 MAX94_C 150 300 MAX94_E/A, MAX942MSA 150 400 VIN = VOS, VCM = 0 or V+ 10 150 Force 100µA into IN+, IN- = GND, measure VIN+ - VIN-, Figure 3 2.2 VIN = VOS, VCM = 0 or VCM = V+ (Note 4) (Note 5) 2.7V ≤ V+ ≤ 5.5V, VCM = 0V 80 300 MAX941_UA/MAX942_UA 80 800 MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA 80 300 MAX941_UA/MAX942_UA 80 350 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 V MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX942MSA ISOURCE = 400µA V 1 V µA High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators (V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14) PARAMETER SYMBOL CONDITIONS V+ = 3V Supply Current per Comparator ICC V+ = 5V MIN TYP MAX MAX941 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/A, MAX942MSA 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 Logic Input Voltage High VIH (Note 11) Logic Input Voltage Low VIL (Note 11) Logic Input Current IIL, IIH Data-to-Latch Setup Time Latch-to-Data Hold Time V+ –––– + 0.4 2 mW ns V+ –––– 2 V+ –––– - 0.4 2 V 10 µA VLOGIC = 0 or V+ (Note 11) 2 tS (Note 12) 20 ns 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+ = 5.5V. 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 MAX941_UA and MAX942_UA 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 50 75 50 60 100 1k 10k 100k tPDRS = 10Ω VOD = 5mV 0 100 300 200 PROPAGATION DELAY vs. SUPPLY VOLTAGE OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT MAX941-04 100 90 90 80 RS = 10Ω CLOAD = 15pF VOD = 5mV 3.0 TA = +125°C TA = +25°C 2.9 80 tPDVOH (V) 100 tPD+ 500 400 PROPAGATION DELAY vs. TEMPERATURE -60 -40 -20 0 70 60 TA = -55°C 2.8 2.7 50 2.6 RS = 10Ω CLOAD = 15pF VOD = 5mV 40 2.5 30 2 20 40 60 80 100 120 140 3 4 5 1 6 10 100 1000 10,000 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 TA = +125°C 500 SUPPLY CURRENT (μA) 0.4 0.3 TA = -55°C TA = +25°C 0.1 800 TA = +125°C 700 SUPPLY CURRENT (μA) MAX941-07 0.5 TA = +25°C 400 300 TA = -55°C 200 TA = +25°C 600 500 TA = -55°C 400 100 TA = +125°C 0 1 10 100 1000 SINK CURRENT (μA) 4 100 CAPACITIVE LOAD (pF) 110 0.2 120 80 10 MAX941-03 MAX941-02 CLOAD = 15pF VOD = 5mV 140 100 100 PROPAGATION DELAY (ns) PROPAGATION DELAY (ns) 150 tPD+ SOURCE IMPEDANCE (Ω) 120 60 tPD- 160 INPUT OVERDRIVE (mV) 130 70 200 MAX941-05 0 tPD+ 250 MAX941-08 40 300 MAX941-09 70 180 PROPAGATION DELAY (ns) tPD+ 80 350 PROPAGATION DELAY (ns) PROPAGATION DELAY (ns) 90 PROPAGATION DELAY vs. CAPACITIVE LOAD 400 MAX941-01 100 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 10,000 300 0 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 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) SHUTDOWN SUPPLY CURRENT (μA) V+ = 6.0V MAX941-12 -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. COMMON-MODE VOLTAGE 250 250 TA = -55°C 200 TA = +25°C 200 I B+ 150 150 I B100 TA = +125°C VIN+ = VINNEGATIVE VALUES REPRESENT CURRENT FLOWING INTO THE DEVICE 100 50 V+ = 6V 0 50 -50 IOS -100 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) MAX941 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 40 OUTPUT SHORTED TO GND (SOURCING) 10 TEMPERATURE (°C) 0 -2000 20 20 40 60 80 100 120 140 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) 0 10MHz RESPONSE MAX941 TOC16 2 TRIP POINTS / VOS (μV) MAX941-11 3 MAX941 TOC15 1.50 40 SHORT-CIRCUIT OUTPUT CURRENT (mA) TA = +125°C V+ = 3.0V VCM+ INPUT VOLTAGE RANGE (V) SUPPLY CURRENT (mA) 4 MAX941-10 2.00 1.75 SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE INPUT VOLTAGE RANGE vs. TEMPERATURE MAX944 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE 30 VOS 20 V+ 1 2 3 4 5 COMMON-MODE VOLTAGE (V) 6 MAX941 TOC 17 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-) MAX941 TOC18 MAX941 TOC19 INPUT 50mV/div VOD VOS V+ OUTPUT 1V/div V+ 2 GND INPUT 50mV/div VOS VOD V+ OUTPUT 1V/div V+ 2 GND 20ns/div 20ns/div tPD+ INPUT STEP = 100mV VOD = +5mV 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 Positive Supply (V+ to GND must be ≤ 6.5V) 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 Connection. Not internally connected. 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 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 pullup or pulldown circuitry. Rail-to-rail input voltage range and low-voltage 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 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 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 two back-to-back diodes between IN+ and IN- as well as two 4.1kΩ resistors (Figure 3). The diodes limit the differential voltage applied to the internal circuitry of the comparators to be no more than 2VF, where VF is the forward voltage drop of the diode (about 0.7V at +25°C). For a large differential input voltage (exceeding 2VF), this protection circuitry increases the input bias current at IN+ (source) and IN- (sink). (IN+ - IN-) - 2VF Input Current = 2 x 4.1kΩ 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 2VF, 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. _______________________________________________________________________________________ 7 MAX941/MAX942/MAX944 VTRIP+ oscillation occurs. Standard comparators require hysteresis to be added with external resistors. The MAX941/MAX942/MAX944’s fixed internal hysteresis 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 storage of comparison results. The L—A—T—C—H– pin has a high input impedance. If L—A—T—C—H– 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 tPD VOH OUT 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 4.1kΩ IN+ VCC MAX941/MAX942/MAX944 MAX941 MAX942 MAX944 MAX941 MAX942 MAX944 ISOURCE TO INTERNAL CIRCUITRY OUTPUT TO INTERNAL CIRCUITRY IN– ISINK 4.1kΩ 0 Figure 3. Input Stage Circuitry Figure 4. Output Stage Circuitry VDD = 3.3V V+ = 3V VREFC SERIAL DIGITAL INPUT SDI VDD 10kΩ 8-BIT DAC 3V COAX LINE MAX512 20kΩ MAX941 DACOUTC GND VSS MAX941 0V CLEAN DIGITAL SIGNAL 20kΩ 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 MAX942MSA/PR -55°C to +125°C PINPACKAGE PROCESS: BiPOLAR 8 SO MAX942CPA 0°C to +70°C MAX942CSA 0°C to +70°C MAX942EPA -40°C to +85°C 8 Plastic DIP MAX942ESA -40°C to +85°C 8 SO MAX942EUA-T -40°C to +85°C 8 µMAX MAX942AUA-T -40°C to +125°C 8 µMAX 8 Plastic DIP 8 SO MAX944CPD 0°C to +70°C 14 Plastic DIP MAX944CSD 0°C to +70°C 14 SO MAX944EPD -40°C to +85°C 14 Plastic DIP MAX942ESD -40°C to +85°C 14 SO 10 Chip Information ______________________________________________________________________________________ High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators PACKAGE TYPE PACKAGE CODE DOCUMENT NO. 8 µMAX U8-1 21-0036 8 Plastic DIP P8-1 21-0043 S8-2 21-0041 P14-3 21-0043 14 SO S14-1 21-0041 8LUMAXD.EPS 8 SO 14 Plastic DIP α α ______________________________________________________________________________________ 11 MAX941/MAX942/MAX944 Package Information (For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.) Package Information (continued) (For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.) PDIPN.EPS MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators 12 ______________________________________________________________________________________ High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS DIM A A1 B C e E H L 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 REV. B 1 1 ______________________________________________________________________________________ 13 MAX941/MAX942/MAX944 Package Information (continued) (For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.) MAX941/MAX942/MAX944 High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators Revision History REVISION NUMBER REVISION DATE 8 12/08 DESCRIPTION Added SO package diagram and removed transistor count PAGES CHANGED 10 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. 14 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.