Not Recommended for New Designs The MAX900 was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. A Maxim replacement or an industry second-source may be available. The data sheet remains available for existing users. The other parts on the following data sheet are not affected. For further information, please see the QuickView data sheet for this part or contact technical support for assistance. 19-2887; Rev. 5; 2/05 High-Speed, Low-Power Voltage Comparators Features The MAX900-MAX903 high-speed, low-power, single/ dual/quad voltage comparators feature differential analog inputs and TTL-logic outputs with active internal pullups. Fast propagation delay (8ns typ at 5mV overdrive) makes the MAX900-MAX903 ideal for fast A/D converters and sampling circuits, line receivers, V/F converters, and many other data-discrimination applications. 8ns (typ) Propagation Delay All comparators can be powered from separate analog and digital power supplies or from a single combined supply voltage. The analog input common-mode range includes the negative rail, allowing ground sensing when powered from a single supply. The MAX900-MAX903 consume 18mW per comparator when powered from +5V. TTL-Compatible Outputs 18mW/Comparator Power Consumption (+5V, typ) Separate Analog and Digital Supplies Flexible Analog Supply: +5V to +10V or 5V Input Range Includes Negative Supply Rail TTL-Compatible Latch Inputs (Except MAX901) Ordering Information PART The MAX900-MAX903 are equipped with independent TTL-compatible latch inputs. The comparator output states are held when the latch inputs are driven low. The MAX901 provides the same performance as the MAX900/MAX902/MAX903 with the exception of the latches. For newer, pin-for-pin compatible parts with the same speed and only half the power dissipation, see the MAX9201/MAX9202/MAX9203 data sheet. Applications High-Speed A/D Converters High-Speed V/F Converters Line Receivers Threshold Detectors Input Trigger Circuitry High-Speed Data Sampling PWM Circuits TEMP RANGE PIN-PACKAGE MAX900ACPP 0C to +70C 20 Plastic DIP MAX900BCPP 0C to +70C 20 Plastic DIP MAX900ACWP 0C to +70C 20 Wide SO MAX900BCWP 0C to +70C 20 Wide SO MAX900AEPP -40C to +85C 20 Plastic DIP MAX900BEPP -40C to +85C 20 Plastic DIP MAX900AEWP -40C to +85C 20 Wide SO MAX900BEWP -40C to +85C 20 Wide SO MAX901ACPE 0C to +70C 16 Plastic DIP MAX901BCPE 0C to +70C 16 Plastic DIP Ordering Information continued at end of data sheet. Pin Configurations TOP VIEW MAX902 MAX901 MAX903 IN- (A) 1 16 IN- (D) IN- (A) 1 14 VCC** IN+ (A) 2 15 IN+ (D) IN+ (A) 2 13 N.C. GND 3 12 OUT (B) GND 3 OUT (A) 4 OUT (B) 5 14 VCC** A D B C 13 OUT (D) LATCH (A) 4 12 OUT (C) OUT (A) 5 B A 11 LATCH (B) 10 VDD*** 11 VDD** N.C. 6 9 IN+ (B) IN+ (B) 7 10 IN+ (C) VEE* 7 8 IN- (B) IN- (B) 8 9 VEE* 6 IN- (C) DIP/SO DIP/SO VCC** 1 8 VDD*** IN+ 2 7 OUT IN- 3 6 GND VEE* 4 5 LATCH DIP/SO *ANALOG V- AND SUBSTRATE **ANALOG V+ ***DIGITAL V+ Pin Configurations continued at end of data sheet. ________________________________________________________________ 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 MAX900-MAX903 General Description MAX900-MAX903 High-Speed, Low-Power Voltage Comparators ABSOLUTE MAXIMUM RATINGS Internal Power Dissipation................................................500mW Derate above +100C ................................................10mW/C Operating Temperature Ranges: MAX900-MAX903_C_ _ .......................................0C to +70C MAX900-MAX903_E_ _ ....................................-40C to +85C Junction Temperature........................................-65C to +160C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Analog Supply Voltage (VCC to VEE) ...................................+12V Digital Supply Voltage (VDD to GND) ....................................+7V Differential Input Voltage..................(VEE - 0.2V) to (VCC + 0.2V) Common-Mode Input Voltage..........(VEE - 0.2V) to (VCC + 0.2V) Latch-Input Voltage (MAX900/MAX902/ MAX903 only) .........................................-0.2V to (VDD + 0.2V) Output Short-Circuit Duration To GND.......................................................................Indefinite To VDD ...............................................................................1min 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 = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = +25C, unless otherwise noted.) MAX900A/MAX901A PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX900B/MAX901B/ MAX902/MAX903 MIN TYP MAX UNITS VOS VCM = 0 VO = 1.4V 0.5 2.0 1.0 4.0 mV IB IIN+ or IIN- 3 6 4 10 A Input Offset Current IOS VCM = 0; VO = 1.4V 50 250 100 500 nA Input Voltage Range VCM (Note 1) VCC 2.25 V Input Offset Voltage Input Bias Current Common-Mode Rejection Ratio Power-Supply Rejection Ratio VCC 2.25 VEE - 0.1 VEE - 0.1 CMRR -5V < VCM < +2.75V, VO = 1.4V (Note 2) 50 150 75 250 V/V PSRR (Note 2) 50 150 100 250 V/V Output High Voltage VOH VIN > 250mV, ISRC = 1mA Output Low Voltage VOL VIN > 250mV, ISINK = 8mA 0.3 0.4 0.3 0.4 V Latch-Input Voltage High VLH (Note 3) 1.4 2.0 1.4 2.0 V Latch-Input Voltage Low VLL (Note 3) Latch-Input Current High ILH VLH = 3.0V (Note 3) 1 20 1 20 A Latch-Input Current Low ILL VLL = 0.3V (Note 3) 1 20 1 20 A 2 2.4 0.8 3.5 2.4 1.4 0.8 3.5 V 1.4 _______________________________________________________________________________________ V High-Speed, Low-Power Voltage Comparators (VCC = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = +25C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX900A/MAX901A MAX900B/MAX901B MIN TYP MAX MAX902 MIN MAX903 TYP MAX MIN TYP UNITS MAX Positive Analog Supply Current ICC (Note 7) 10 15 5 8 2.5 4 mA Negative Analog Supply Current IEE (Note 7) 7 12 3.5 6 2 3 mA Digital Supply Current IDD (Note 7) 4 6 2 3 1 1.5 mA Power Dissipation PD VCC = VDD = +5V, VEE = 0 70 105 35 55 18 28 mW TIMING CHARACTERISTICS (VCC = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = +25C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX900A/MAX901A MAX900B/MAX901B MIN TYP MAX tpd+ VOD = 5mV, CL = 15pF, IO = 2mA (Note 4) 8 Input-to-Output Low Response Time tpd- VOD = 5mV, CL = 15pF, IO = 2mA (Note 4) Difference in Response Time Between Outputs tpd Latch Disable to Output High Delay Latch Disable to Output Low Delay MAX902 MAX903 UNITS TYP MAX 10 8 8 10 (Notes 4, 5) 0.5 2.0 tpd+ (D) (Notes 3, 6) 10 10 10 ns tpd- (D) (Notes 3, 6) 12 12 12 ns Minimum Setup Time ts (Notes 3, 6) 2 2 2 ns Minimum Hold Time th (Notes 3, 6) 1 1 1 ns Minimum Latch Disable Pulse Width tpw (D) (Notes 3, 6) 10 10 10 ns Input-to-Output High Response Time MIN MIN TYP MAX 10 8 10 ns 8 10 8 10 ns 0.5 2.0 0.5 2.0 ns _______________________________________________________________________________________ 3 MAX900-MAX903 ELECTRICAL CHARACTERISTICS (continued) MAX900-MAX903 High-Speed, Low-Power Voltage Comparators ELECTRICAL CHARACTERISTICS (VCC = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = full operating temperature, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX900A/MAX901A MIN TYP MAX MAX900B/MAX901B/ MAX902/MAX903 MIN TYP MAX UNITS VOS VCM = 0, VO = 1.4V 1 3 2 6 mV IB IIN+ or IIN- 4 10 6 15 A Input Offset Current IOS VCM = 0, VO = 1.4V 100 500 200 800 nA Input Voltage Range VCM (Note 1) VCC 2.25 V Input Offset Voltage Input Bias Current Common-Mode Rejection Ratio Power-Supply Rejection Ratio VEE 0.1 VCC 2.25 VEE 0.1 CMRR -5V < VCM < +2.75V, VO = 1.4V (Note 2) 80 250 120 500 V/V PSRR (Note 2) 100 250 150 500 V/V Output High Voltage VOH VIN > 250mV, ISRC = 1mA Output Low Voltage VOL VIN > 250mV, ISINK = 8mA 0.3 0.4 0.3 0.4 V Latch Input Voltage High VLH (Note 7) 1.4 2.0 1.4 2.0 V Latch Input Voltage Low VLL (Note 7) Latch Input Current High ILH VLH = 3.0V (Note 7) 2 20 1 20 A Latch Input Current Low ILL VLL = 0.3V (Note 7) 2 20 1 20 A 4 2.4 0.8 3.5 2.4 1.4 0.8 3.5 V 1.4 V _______________________________________________________________________________________ High-Speed, Low-Power Voltage Comparators (VCC = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = full operating temperature, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX900A/MAX901A/ MAX900B/MAX901B MIN TYP MAX MAX902 MAX903 UNITS MIN TYP MAX MIN TYP MAX Positive Analog Supply Current ICC (Note 7) 10 25 5 12 2.5 6 mA Negative Analog Supply Current IEE (Note 7) 7 20 3.5 10 2 5 mA Digital Supply Current IDD (Note 7) 4 10 2 5 1 2.5 mA Power Dissipation PD VCC = VDD = +5V, VEE = 0 70 105 35 55 18 28 mW TIMING CHARACTERISTICS (VCC = +5V, VEE = -5V, VDD = +5V, LE1-LE4 = logic high, TA = full operating temperature, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX900A/MAX901A MIN TYP MAX tpd+ VOD = 5mV, CL = 15pF, IO = 2mA (Note 4) 10 Input-to-Output Low Response Time tpd- VOD = 5mV, CL = 15pF, IO = 2mA (Note 4) Difference in Response Time Between Outputs tpd (Notes 4, 5) Input-to-Output High Response Time MAX900B/MAX901B/ MAX902/MAX903 MIN UNITS TYP MAX 15 10 15 ns 10 15 10 15 ns 1 3 1 3 ns Note 1: The input common-mode voltage and input signal voltages should not be allowed to go negative by more than 0.2V below VEE. The upper-end of the common-mode voltage range is typically VCC - 2V, but either or both inputs can go to a maximum of VCC + 0.2V without damage. Note 2: Tested for +4.75V < VCC < +5.25V, and -5.25V < VEE < -4.75V with VDD = +5V, although permissible analog power-supply range is +4.75V < VCC < +10.5V for single-supply operation with VEE grounded. Note 3: Specification does not apply to MAX901. Note 4: Guaranteed by design. Times are for 100mV step inputs (see Propagation Delay Characteristics in Figures 2 and 3). Note 5: Maximum difference in propagation delay between any of the four comparators in the MAX900-MAX903. Note 6: See Timing Diagram (Figure 2). Owing to the difficult and critical nature of switching measurements involving the latch, these parameters cannot be tested in a production environment. Typical specifications listed are taken from measurements using a high-speed test-jig. Note 7: ICC tested for +4.75V < VCC < +10.5V with VEE grounded. IEE tested for -5.25V < VEE < -4.75V with VCC = +5V. IDD tested for +4.75V < VDD < +5.25V with the worst-case condition of all four comparator outputs at logic low. _______________________________________________________________________________________ 5 MAX900-MAX903 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (TA = +25C, unless otherwise noted.) INPUT BIAS CURRENT vs. TEMPERATURE 0 -1 -2 3.5 3.0 2.5 20 40 60 80 100 120 TA = -55C 0.4 0.3 0.2 TA = +25C 0.1 -40 -20 0 TA = +125C 20 40 60 80 100 120 2 4 6 10 IINPUT OVERDRIVE vs. tpd+ RESPONSE TIME INPUT OVERDRIVE vs. tpd- RESPONSE TIME TA = +125C 2.8 TA = +25C 3 0 INPUT VOLTAGE 1 2.2 TA = -55C 1.8 4 5 6 7 8 9 2mV 2 2.4 2.0 25mV 5mV 100 INPUT OVERDRIVE (VOD) 0 -100 10 2mV 3 25mV 0 1 0 100 INPUT OVERDRIVE (VOD) 0 2 4 6 8 10 12 0 14 2 tpd+ RESPONSE TIME (ns) RESPONSE TIME vs. TEMPERATURE (5mV OVERDRIVE) 13 12 4 14 RL = 2.4k 13 12 11 tpd+ 10 11 9 10 8 9 7 tpd- 6 tpdtpd+ 8 7 5 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) 10 6 8 10 12 tpd- RESPONSE TIME (ns) RESPONSE TIME vs. LOAD CAPACITANCE (5mV OVERDRIVE) MAX900-03 toc07 14 5mV 2 -100 VCC SUPPLY VOLTAGE (V) RESPONSE TIME (ns) 4 MAX900-03 toc08 2.6 4 INPUT VOLTAGE OUTPUT VOLTAGE VDD = +5V MAX900-03 toc06 ICC SUPPLY CURRENT (PER COMPARATOR) vs. VCC SUPPLY VOLTAGE MAX900-03 toc05 LOAD CURRENT (mA) OUTPUT VOLTAGE TEMPERATURE (C) 1.6 6 8 TEMPERATURE (C) MAX900-03 toc04 3.0 0.5 2.0 -40 -20 0 MAX900-03 toc03 4.0 OUTPUT LOW VOLTAGE (V) 1 OUTPUT LOW VOLTAGE (VOL) vs. LOAD CURRENT MAX900-03 toc02 2 INPUT BIAS VOLTAGE (V) MAX900-03 toc01 INPUT OFFSET VOLTAGE (mV) INPUT OFFSET VOLTAGE vs. TEMPERATURE ICC SUPPLY CURRENT (mA) MAX900-MAX903 High-Speed, Low-Power Voltage Comparators 20 30 40 50 60 70 80 LOAD CAPACITANCE (pF) ______________________________________________________________________________________ 14 High-Speed, Low-Power Voltage Comparators MAX900 MAX901 PIN NAME FUNCTION 1, 10, 11, 20 IN- (A, B, C, D) 2, 9, 12, 19 IN+ (A, B, C, D) 3 GND 4, 7, 14, 17 LATCH (A, B, C, D) Latch Input (Channels A, B, C, D) 5, 6, 15, 16 OUT (A, B, C, D) 8 PIN NAME Negative Input (Channels A, B, C, D) 1, 8, 9, 16 IN- (A, B, C, D) Negative Input (Channels A, B, C, D) Positive Input (Channels A, B, C, D) 2, 7, 10, 15 IN+ (A, B, C, D) Positive Input (Channels A, B, C, D) 3 GND 4, 5, 12, 13 OUT (A, B, C, D) Output (Channels A, B, C, D) Output (Channels A, B, C, D) 6 VEE Negative Analog Supply and Substrate VEE Negative Analog Supply and Substrate 11 VDD Positive Digital Supply 13 VDD Positive Digital Supply 14 VCC Positive Analog Supply 18 VCC Positive Analog Supply Ground Terminal FUNCTION Ground Terminal MAX903 MAX902 PIN NAME FUNCTION 1, 8 IN- (A, B) Negative Input (Channels A, B) 2, 9 IN+ (A, B) Positive Input (Channels A, B) 3 GND Ground Terminal 4, 11 LATCH (A, B) 5, 12 OUT (A, B) 6, 13 PIN NAME FUNCTION 1 VCC Positive Analog Supply 2 IN+ Positive Input 3 IN- Negative Input 4 VEE Latch Input (Channels A, B) Negative Analog Supply and Substrate 5 LATCH Output (Channels A, B) 6 GND Ground Terminal N.C. No Connection. Not internally connected. 7 OUT Output VDD Positive Digital Supply VEE Negative Analog Supply and Substrate 8 7 10 VDD Positive Digital Supply 14 VCC Positive Analog Supply Latch Input _______________________________________________________________________________________ 7 MAX900-MAX903 Pin Descriptions MAX900-MAX903 High-Speed, Low-Power Voltage Comparators Applications Information pushes the output through the transition region cleanly, but applies a hysteresis in threshold seen at the input terminals. Circuit Layout Because of the large gain-bandwidth transfer function of the MAX900-MAX903, special precautions must be taken to realize their full high-speed capability. A printed circuit board with a good, low-inductance ground plane is mandatory. All decoupling capacitors (the small 100nF ceramic type is a good choice) should be mounted as close as possible to the power-supply pins. Separate decoupling capacitors for analog VCC and for digital V DD are also recommended. Close attention should be paid to the bandwidth of the decoupling and terminating components. Short lead lengths on the inputs and outputs are essential to avoid unwanted parasitic feedback around the comparators. Solder the device directly to the printed circuit board instead of using a socket. TTL Output and Latch Inputs The comparator TTL-output stages are optimized for driving low-power Schottky TTL with a fan-out of four. When the latch is connected to a logic high level, the comparator is transparent and immediately responds to changes at the input terminals. When the latch is connected to a TTL low level, the comparator output latches in the same state as at the instant that the latch command is applied, and will not respond to subsequent changes at the input. No latch is provided on the MAX901. Power Supplies The MAX900-MAX903 can be powered from separate analog and digital supplies or from a single +5V supply. The analog supply can range from +5V to +10V with VEE grounded for single-supply operation (Figures 1A and 1B) or from a split 5V supply (Figure 1C). The VDD digital supply always requires +5V. In high-speed, mixed-signal applications where a common ground is shared, a noisy digital environment can adversely affect the analog input signal. When set up with separate supplies (Figure 1C), the MAX900-MAX903 isolate analog and digital signals by providing a separate AGND (VEE) and DGND. Input Slew-Rate Requirements As with all high-speed comparators, the high gain-bandwidth product of the MAX900-MAX903 can create oscillation problems when the input traverses the linear region. For clean output switching without oscillation or steps in the output waveform, the input must meet minimum slew-rate requirements. Oscillation is largely a function of board layout and of coupled source impedance and stray input capacitance. Both poor layout and large-source impedance will cause the part to oscillate and increase the minimum slew-rate requirement. In some applications, it may be helpful to apply some positive feedback between the output and + input. This Typical Power-Supply Alternatives +5V +10V +5V +5V +5V VCC VCC VCC VDD OUT GND VEE VDD VDD OUT OUT GND VEE GND VEE -5V Figure 1A. Separate Analog Supply, Common Ground 8 Figure 1B. Single +5V Supply, Common Ground Figure 1C. Split 5V Supply, Separate Ground _______________________________________________________________________________________ High-Speed, Low-Power Voltage Comparators VOS Input Offset Voltage: Voltage applied between the two input terminals to obtain TTL-logic threshold (+1.4V) at the output. tpd+ (D) Latch Disable-to-Output High Delay: The propagation delay measured from the latch-signal crossing the TTL threshold in a low-to-high transition to the point of the output crossing TTL threshold in a low-to-high transition. VIN Input Voltage Pulse Amplitude: Usually set to 100mV for comparator specifications. tpd- (D) Latch Disable-to-Output Low Delay: The propagation delay measured from the latch-signal crossing the TTL threshold in a low-to-high transition to the point of the output crossing TTL threshold in a high-to-low transition. VOD Input Voltage Overdrive: Usually set to 5mV and in opposite polarity to VIN for comparator specifications. ts Minimum Setup Time: The minimum time before the negative transition of the latch signal that an input signal change must be present in order to be acquired and held at the outputs. tpd+ Input-to-Output High Delay: The propagation delay measured from the time the input signal crosses the input offset voltage to the TTL-logic threshold of an output low-to-high transition th Minimum Hold Time: The minimum time after the negative transition of the latch signal that an input signal must remain unchanged in order to be acquired and held at the output. tpd- Input-to-Output Low Delay: The propagation delay measured from the time the input signal crosses the input offset voltage to the TTL-logic threshold of an output high-to-low transition. tpw (D) Minimum Latch-Disable Pulse Width: The minimum time that the latch signal must remain high in order to acquire and hold an input-signal change. _______________________________________________________________________________________ 9 MAX900-MAX903 Definitions of Terms MAX900-MAX903 High-Speed, Low-Power Voltage Comparators COMPARE LATCH ENABLE INPUT COMPARE 1.4V LATCH LATCH DIFFERENTAL INPUT VOLTAGE VIN ts +5V LATCH tpw(D) th 0 OUTPUT VOS +5mV VDD VOS INPUT 100mV 5ns/div tpd+ (D) tpd- Figure 3. tpd+ Response Time to 5mV Overdrive 1.4V COMPARATOR OUTPUT Figure 2. MAX900/MAX902/MAX903 Timing Diagram VCC +5V +5V VDD +5V INPUT TO 10X SCOPE PROBE (10M, 14pF) OUTPUT PRECISION STEP GENERATOR 0 100nF 10 RL 2.43k 1k D.U.T. 100mV INPUT 10k VDC OFFSET ADJUST 100nF OUTPUT TO 10X SCOPE PROBE (10M, 14pF) 100nF VOS +5mV 10 100nF VEE -5V 5ns/div Figure 4. tpd- Response Time to 5mV Overdrive 10 Figure 5. Response-Time Setup ______________________________________________________________________________________ High-Speed, Low-Power Voltage Comparators MAX900-MAX903 OUTPUT 1V/div OUTPUT 1V/div INPUT 10mV/div INPUT 10mV/div 5ns/div 5ns/div Figure 6. Response to 50MHz Sine Wave Figure 7. Response to 100MHz Sine Wave Photo +1.25V VREF Typical Application IN1 MX7228 UNDER LIMIT VOUT1 VDAC1 OCTAL 8-BIT DAC OVER LIMIT IN2 IN3 UNDER LIMIT IN4 UNDER LIMIT The MX7228's internal latches allow the system processor to set the limit points for each comparator independently and update them at any time. Set the upper and lower thresholds for a single transducer by pairing the D/A converter and comparator sections. MAX901 MSB D7 8-BIT DATA INPUT Programmed, Variable-Alarm Limits By combining two quad analog comparators with an octal 8-bit D/A converter (the MX7228), several alarm and limit-defect functions can be performed simultaneously without external adjustments 8x8 DATA LATCH IN5 UNDER LIMIT LSB D1 IN6 UNDER LIMIT OVER LIMIT IN7 A0 A1 CONTROL LOGIC VDAC8 VOUT8 OVER LIMIT A2 IN8 MAX901 Figure 8. Alarm Circuit Level Monitors Eight Separate Inputs ______________________________________________________________________________________ 11 MAX900-MAX903 High-Speed, Low-Power Voltage Comparators Ordering Information (continued) PART TEMP RANGE Pin Configurations (continued) PIN-PACKAGE TOP VIEW MAX901ACSE 0C to +70C 16 Narrow SO MAX901BCSE 0C to +70C 16 Narrow SO MAX901AEPE -40C to +85C 16 Plastic DIP MAX901BEPE -40C to +85C IN- (A) 1 20 IN- (D) IN+ (A) 2 19 IN+ (D) GND 3 16 Plastic DIP LATCH (A) 4 OUT (A) 5 MAX901AESE -40C to +85C 16 Narrow SO MAX901BESE -40C to +85C 16 Narrow SO MAX902CPD 0C to +70C 14 Plastic DIP MAX902CSD 0C to +70C MAX902EPD 18 VCC** A 17 LATCH (D) 16 OUT (D) MAX900 OUT (B) 6 LATCH (B) 7 D B 15 OUT (C) C 14 LATCH (C) VEE* 8 13 VDD*** 14 Narrow SO IN+ (B) 9 12 IN+ (C) -40C to +85C 14 Plastic DIP IN- (B) 10 11 IN- (C) MAX902ESD -40C to +85C 14 Narrow SO MAX903CPA 0C to +70C 8 Plastic DIP MAX903CSA 0C to +70C 8 SO MAX903EPA -40C to +85C 8 Plastic DIP MAX903ESA -40C to +85C 8 SO DIP/SO *ANALOG V- AND SUBSTRATE **ANALOG V+ ***DIGITAL V+ 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 (c) 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.