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19-0129; Rev. 3; 7/94
Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators
_______________General Description
The MAX907/MAX908/MAX909 dual, quad, and single high-speed, ultra low-power voltage comparators are designed for use in systems powered from a single +5V supply; the MAX909 also accepts dual 5V supplies. Their 40ns propagation delay (with 5mV input overdrive) is achieved with a power consumption of only 3.5mW per comparator. The wide input commonmode range extends from 200mV below ground (below the negative supply rail for the MAX909) to within 1.5V of the positive supply rail. Because they are micropower, high-speed comparators that operate from a single +5V supply and include built-in hysteresis, these devices replace a variety of older comparators in a wide range of applications. MAX907/MAX908/MAX909 outputs are TTL compatible, requiring no external pull-up circuitry. All inputs and outputs can be continuously shorted to either supply rail without damage. These easy-to-use comparators incorporate internal hysteresis to ensure clean output switching even when the devices are driven by a slow-moving input signal. The MAX909 features complementary outputs and an output latch. A separate supply pin for extending the analog input range down to -5V is also provided. The dual MAX907 and single MAX909 are available in 8-pin DIP and small-outline packages, and the quad MAX908 is available in 14-pin DIP and small-outline packages. These comparators are ideal for single +5V-supply applications that require the combination of high speed, precision, and ultra-low power dissipation.
___________________________Features
o 40ns Propagation Delay o 700A (3.5mW) Supply Current per Comparator o Single 4.5V to 5.5V Supply Operation (or 5V, MAX909 only) o Wide Input Range Includes Ground (or -5V, MAX909 only) o Low, 500V Offset Voltage o Internal Hysteresis Provides Clean Switching o TTL-Compatible Outputs (Complementary on MAX909) o Input and Output Short-Circuit Protection o Internal Latch (MAX909 only)
MAX907/MAX908/MAX909
______________Ordering Information
PART MAX907CPA MAX907CSA MAX907C/D MAX907EPA MAX907ESA MAX907MJA TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO Dice* 8 Plastic DIP 8 SO 8 CERDIP
Ordering Information continued on last page. * Dice are specified at +25C, DC parameters only.
_________________Pin Configurations
TOP VIEW
OUTA INA1 2 8 7 6 V+ OUTB INBINB+
INA+ 3 GND 4
_______________________Applications
Battery-Powered Systems High-Speed A/D Converters High-Speed V/F Converters Line Receivers Threshold Detectors/Discriminators High-Speed Sampling Circuits Zero Crossing Detectors
MAX907
5
DIP/SO
OUTA INA1 2 14 OUTD 13 IND12 IND+
INA+ 3 V+ 4 INB+ 5
MAX908
11 GND 10 INC+ 9 8 INCOUTC
INB- 6 OUTB 7
DIP/SO
Pin Configurations continued on last page. ________________________________________________________________ Maxim Integrated Products
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
ABSOLUTE MAXIMUM RATINGS
Positive Supply Voltage (V+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . +7V Negative Supply Voltage (V- to GND, MAX909 only) . . . . . . . . . -7V Differential Input Voltage MAX907/MAX908 . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V+ + 0.3V) MAX909 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (V- - 0.3V) to (V+ + 0.3V) Common-Mode Input Voltage MAX907/MAX908 . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V+ + 0.3V) MAX909 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (V- - 0.3V) to (V+ + 0.3V) Latch Input Voltage (MAX909 only) . . . . . . . . . -0.3V to (V+ + 0.3V) Input/Output Short-Circuit Duration to V+ or GND . . . Continuous Continuous Power Dissipation (TA = +70C) 8-Pin Plastic DIP (derate 9.09mW/C above +70C) . . . 727mW 8-Pin SO (derate 5.88mW/C above +70C) . . . . . . . . . . . 471mW 8-Pin CERDIP (derate 8.00mW/C above +70C) . . . . . . 640mW 14-Pin Plastic DIP (derate 10.00mW/C above +70C) . . .800mW 14-Pin SO (derate 8.33mW/C above +70C) . . . . . . . . . . 667mW 14-Pin CERDIP (derate 9.09mW/C above +70C) . . . . 727mW Operating Temperature Ranges: MAX90_C_ _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C MAX90_E_ _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to +85C MAX90_MJ_ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to +125C Storage Temperature Range . . . . . . . . . . . . . . . . . . . -65C to +160C Lead Temperature (soldering, 10sec). . . . . . . . . . . . . . . . . . . . +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
(V+ = 5V, TA = +25C; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.) PARAMETER Positive Trip Point Negative Trip Point Input Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Output High Voltage Output Low Voltage Positive Supply Current per Comparator Negative Supply Current Power Dissipation per Comparator Output Rise Time Output Fall Time SYMBOL VTRIP+ VTRIPVOS IB IOS VCMR CMRR PSRR VOH VOL I+ IPD tr tf CONDITIONS (Note 1) (Note 1) (Note 2) VCM = 0V, VIN = VOS VCM = 0V, VIN = VOS (Notes 3, 4) (Notes 4, 5) (Notes 4, 6) ISOURCE = 100A ISINK = 3.2mA ISINK = 8mA (Note 7) MAX907/MAX908 MAX909 MAX907/MAX908 3.0 MAX907/908/909 MAX909 only: V- = -5V -0.2 -5.2 50 50 3.5 0.3 0.4 0.7 1.2 60 3.5 6 12 6 1.0 1.8 100 5.5 10 0.4 MIN TYP 2 -2 0.5 100 25 MAX 4 -4 2.0 300 50 V+ - 1.5 V+ - 1.5 100 100 UNITS mV mV mV nA nA V V/V V/V V V mA A mW ns ns
MAX909 only: V- = -5V (Note 8) MAX909 VOUT = 0.4V to 2.4V, CL = 10pF VOUT = 2.4V to 0.4V, CL = 10pF
2
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, TA = +25C; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.) PARAMETER Propagation Delay Differential Propagation Delay Propagation Delay Skew Latch Input Voltage High Latch Input Voltage Low Latch Input Current Latch Setup Time Latch Hold Time SYMBOL tPD+, tPDtPD tPDskew VIH VIL IIH, IIL ts th CONDITIONS VIN = 100mV, VOD = 5mV, (Note 9) VIN = 100mV, VOD = 5mV, (Note 10) MAX909 only: VIN = 100mV, VOD = 5mV, (Note 11) (Note 12) (Note 12) (Note 12) (Note 12) (Note 12) 2 2 2.0 0.8 20 MIN TYP 40 1 2 MAX 50 UNITS ns ns ns V V A ns ns
MAX907/MAX908/MAX909
ELECTRICAL CHARACTERISTICS
(V+ = 5V, TA = TMIN to TMAX; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.) PARAMETER Positive Trip Point Negative Trip Point Input Offset Voltage Input Bias Current Input Offset Current SYMBOL VTRIP+ VTRIPVOS IB IOS CONDITIONS (Note 1) (Note 1) (Note 2) VCM = 0V, VIN = VOS VCM = 0V, VIN = VOS MAX907/908/909 C/E temp. ranges MAX909 only, (Notes 3, 4) V- = -5V MAX907/908/909 M temp. range MAX909 only, (Notes 3, 4) V- = -5V (Notes 4, 5) (Notes 4, 6) ISOURCE = 100A ISINK = 3.2mA ISINK = 8mA (Note 7) MAX907/MAX908 MAX909 MAX907/MAX908 MAX909 2.8 -0.2 -5.2 -0.1 -5.1 75 75 3.5 0.3 0.4 0.8 1.2 100 4 6 1.2 2.0 200 7 11 0.4 MIN TYP 2 -2 1 200 50 MAX 5 -5 3 500 100 V+ - 1.5 V+ - 1.5 V+ - 1.5 V+ - 1.5 200 200 V/V V/V V V mA A mW V UNITS mV mV mV nA nA
Input Voltage Range
VCMR
Common-Mode Rejection Ratio Power-Supply Rejection Ratio Output High Voltage Output Low Voltage Positive Supply Current per Comparator Negative Supply Current Power Dissipation per Comparator
CMRR PSRR VOH VOL I+ IPD
MAX909 only: V- = -5V (Note 8)
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, TA = TMIN to TMAX; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.) PARAMETER Propagation Delay Differential Propagation Delay Propagation Delay Skew Latch Input Voltage High Latch Input Voltage Low Latch Input Current Latch Setup Time Latch Hold Time Note 1: SYMBOL tPD+, tPDtPD tPDskew VIH VIL IIH, IIL ts th CONDITIONS VIN = 100mV, VOD = 5mV (Note 9) VIN = 100mV, VOD = 5mV (Note 10) MAX909 only: VIN = 100mV, VOD = 5mV (Note 11) (Note 12) (Note 12) (Note 12) (Note 12) (Note 12) 4 4 2.0 0.8 20 MIN TYP 45 2 4 MAX 70 UNITS ns ns ns V V A ns ns
Trip Point is defined as the input voltage required to make the comparator output change state. The difference between upper (VTRIP+) and lower (VTRIP-) trip points is equal to the width of the input-referred hysteresis zone (VHYST). Specified for an input common-mode voltage (VCM) of 0V. See Figure 1. Note 2: Input Offset Voltage is defined as the center of the input-referred hysteresis zone. Specified for VCM = 0V. See Figure 1. Note 3: Inferred from the CMRR test. Note that a correct logic result is obtained at the output, provided that at least one input is within the VCMR limits. Note also that either or both inputs can be driven to the upper or lower absolute maximum limit without damage to the part. Note 4: Tested with V+ = 5.5V (and V- = 0V for MAX909). MAX909 also tested over the full analog input range (i.e., with V- = -5.5V). Note 5: Tested over the full input voltage range (VCMR). Note 6: Specified over the full tolerance of operating supply voltage: MAX907/MAX908 tested with 4.5V < V+ < 5.5V. MAX909 tested with 4.5V < V+ < 5.5V and with -5.5V < V- < 0V. Note 7: Positive Supply Current specified with the worst-case condition of all outputs at logic low (MAX907/MAX908), and with V+ = 5.5V. Note 8: Typical power specified with V+ = 5V; maximum with V+ = 5.5V (and with V- = -5.5V for MAX909). Note 9: Due to difficulties in measuring propagation delay with 5mV of overdrive in automatic test equipment, the MAX907/MAX908/MAX909 are sample tested to 0.1% AQL with 100mV input overdrive. Correlation tests show that the specification can be guaranteed if all other DC parameters are within the specified limits. VOS must be added to the overdrive voltage for low values of overdrive. Note 10: Differential Propagation Delay is specified as the difference between any two channels in the MAX907/MAX908 (both outputs making either a low-to-high or a high-to-low transition). Note 11: Propagation Delay Skew is specified as the difference between any single channel's output low-to-high transition (tPD+) and high-to-low transition (tPD-), and also between the QOUT and QOUT transition on the MAX909. Note 12: Latch specifications apply to MAX909 only. See Figure 2.
4
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators
__________________________________________Typical Operating Characteristics
(V+ = 5V, TA = +25C, unless otherwise noted.)
PROPAGATION DELAY vs. INPUT OVERDRIVE
50 RS = 10 CLOAD = 15pF 40 tPD+ tPD80 VOD = 5mV CLOAD = 15pF 60 tPD+ tPD40 PROPAGATION DELAY (ns) 60 tPD+ 50
MAX907/MAX908/MAX909
PROPAGATION DELAY vs. SOURCE IMPEDANCE
70
PROPAGATION DELAY vs. CAPACITIVE LOAD
VOD = 5mV RS = 10
PROPAGATION DELAY (ns)
30
PROPAGATION DELAY (ns)
20
20
40
tPD-
10 1 10 INPUT OVERDRIVE (mV) 100
0 10 100 1k 10k SOURCE IMPEDANCE ()
30 0 20 40 60 80 100 120 CAPACITIVE LOAD (pF)
PROPAGATION DELAY vs. TEMPERATURE
70 5.0 VOD = 5mV RS = 10 CLOAD = 15pF
OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT
0.5 VIN = 100mV 4.5 VOH (V) VOL (V) TA = +125C 4.0 TA = +25C TA = -55C 0.4
OUTPUT LOW VOLTAGE vs. SINK CURRENT
VIN = 100mV TA = -55C TA = +25C 0.3
PROPAGATION DELAY (ns)
60
50
tPD+ tPD-
40
3.5
0.2
TA = +125C
30 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
3.0 1 10 100 1000 ISOURCE (A)
0.1 0 2 4 6 ISINK (mA) 8 10 12
MAX907 TOTAL POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE (OUTPUTS AT VOL)
2.0 TA = +125C 1.5 TOTAL ICC (mA) TOTAL ICC (mA) TA = +25C 1.0 TA = -55C 1.5 2.0
MAX907 TOTAL POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE (OUTPUTS AT VOH)
4.0
MAX908 TOTAL POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE (OUTPUTS AT VOL)
TA = +125C
TA = +125C TA = +25C TOTAL ICC (mA)
3.0 TA = +25C 2.0 TA = -55C
1.0
TA = -55C
0.5
0.5
1.0
0 2 3 4 5 VCC (V) 6 7 8
0 2 3 4 5 VCC (V) 6 7 8
0 2 3 4 5 VCC (V) 6 7 8
_________________________________________________________________________________________________
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
____________________________Typical Operating Characteristics (continued)
(V+ = 5V, TA = +25C, unless otherwise noted.)
MAX908 TOTAL POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE (OUTPUTS AT VOH)
4.0 TA = +125C 3.0 TOTAL ICC (mA)
MAX909 POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE
2.0 V- = -5V +125C TOTAL I+ (mA) +25C 1.0 -55C TOTAL I- (A) 200
MAX909 NEGATIVE SUPPLY CURRENT vs. NEGATIVE SUPPLY VOLTAGE
V+ = +5V +125C
TA = +25C 2.0 TA = -55C
100 +25C
1.0
-55C
0 2 3 4 5 VCC (V) 6 7 8
0 2 3 4 5 V+ (V) 6 7 8
0 0 -1 -2 -3 -4 -5 -6 -7 V- (V)
INPUT VOLTAGE RANGE vs. TEMPERATURE
5 VCMR+ INPUT VOLTAGE RANGE (V) 4 INPUT VOLTAGE RANGE (V) 4 5
MAX909 INPUT VOLTAGE RANGE vs. TEMPERATURE
SHORT-CIRCUIT OUTPUT CURRENT (mA) 60 VCMR+ V+ = +5V V- = -5V
SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE
OUTPUT SHORTED TO V+ (SINKING)
30
0
VCMR-
-5 VCMR-
OUTPUT SHORTED TO GND (SOURCING) 0 -60 -40 -20 0 20 40 60 80 100 120 140
-1 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
-6 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
TEMPERATURE (C)
INPUT OFFSET VOLTAGE vs. TEMPERATURE
0.5 VOUT = 1.4V VCM = 0V INPUT CURRENT (nA) 300
INPUT BIAS CURRENT vs. TEMPERATURE
4 VCM = 0V VIN = VOS 2 VOS (mV) VCM = 0V
TRIP POINT vs. TEMPERATURE
VOS (mV)
VTRIP+ 0 VTRIP-2
0
200
-0.5 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
100 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
-4 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
6
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators
____________________________Typical Operating Characteristics (continued)
(V+ = 5V, TA = +25C, unless otherwise noted.)
MAX907/MAX908/MAX909
MAX907/MAX908 PROPAGATION DELAY (tPD+) (5mV OVERDRIVE)
5mV OVERDRIVE INPUT GND INPUT (20mV/div) OUTPUT (500mV/div) TTL THRESHOLD (1.4V) OUTPUT GND tPD+ INPUT (20mV/div)
MAX907/MAX908 PROPAGATION DELAY (tPD-) (5mV OVERDRIVE)
INPUT GND -5mV OVERDRIVE
OUTPUT (500mV/div) TTL THRESHOLD (1.4V) OUTPUT GND tPDTIME (10 /di )
MAX909 PROPAGATION DELAY (tPD+) (5mV OVERDRIVE)
5mV OVERDRIVE INPUT GND INPUT (20mV/div) QOUT (1V/div) 1.4V OUTPUT GND tPD+ tPD SKEW QOUT OUTPUT GND INPUT (20mV/div)
MAX909 PROPAGATION DELAY (tPD-) (5mV OVERDRIVE)
INPUT GND -5mV OVERDRIVE QOUT (1V/div) 1.4V QOUT tPDtPD SKEW
RESPONSE TO 10MHz SINE WAVE
20mVp-p 10MHz SINE WAVE INPUT COMPARATOR OUTPUT (1V/div) GND
TIME (50ns/div)
_________________________________________________________________________________________________
7
Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
______________________________________________________________Pin Description
PIN MAX907 1 2 3 8 5 6 7 MAX908 1 2 3 4 5 6 7 8 9 10 4 11 12 13 14 2 3 4 5 7 8 6 1 MAX909 NAME OUTA INAINA+ V+ INB+ INBOUTB OUTC INCINC+ GND IND+ INDOUTD IN+ INVLE QOUT QOUT Comparator A Output Comparator A Inverting Input Comparator A Noninverting Input Positive Supply Comparator B Noninverting Input Comparator B Inverting Input Comparator B Output Comparator C Output Comparator C Inverting Input Comparator C Noninverting Input Ground Comparator D Noninverting Input Comparator D Inverting Input Comparator D Output Noninverting Input Inverting Input Negative Supply or Ground The latch is transparent when LE is low. The comparator output is stored when LE is high. Comparator Output Inverted Comparator Output FUNCTION
_______________Detailed Description
Timing
Noise or undesired parasitic AC feedback cause most high-speed comparators to oscillate in the linear region (i.e., when the voltage on one input is at or near the voltage on the other input). The MAX907/MAX908/ MAX909 eliminate this problem by incorporating internal hysteresis. When the two comparator input voltages are equal, 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 that hysteresis be added through the use of external resistors. The MAX907/MAX908/MAX909's fixed internal hysteresis eliminates these resistors (and the equations required to determine appropriate values).
Adding hysteresis to a comparator creates two trip points: one for the input voltage rising and one for the input voltage falling (Figure 1). The difference between these two input-referred trip points is the hysteresis. 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 MAX909 includes an internal latch, allowing the result of a comparison to be stored. If LE is low, the latch is transparent (i.e., the comparator operates as though the latch is not present). The state of the comparator output is stored when LE is high. See Figure 2. Note that the MAX909 can be operated with V- connected to ground or to a negative supply voltage. The MAX909's input range extends from (V- - 0.2V) to (V+ - 1.5V).
8
_______________________________________________________________________________________
Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
VTRIP+ VHYST VIN+ V + VTRIPVOS = TRIP+ 2 VIN- = 0V 3V LE 1.4V 0 COMPARE ts th LATCH
VTRIP-
VOS VOH COMPARATOR OUTPUT VOL DIFFERENTIAL INPUT VOLTAGE VOH OUTPUT 1.4V (QOUT) VOL
VOD VIN
tPD+
Figure 1. Input and Output Waveforms, Noninverting Input Varied
tSKEW VOH OUTPUT (QOUT) 1.4V VOL
__________Applications Information
Circuit Layout
Because of the MAX907/MAX908/MAX909's high gain bandwidth, special precautions must be taken to realize the full high-speed capability. A printed circuit board with a good, low-inductance ground plane is mandatory. Place the decoupling capacitor (a 0.1F ceramic capacitor is a good choice) as close to V+ as possible. Pay close attention to the decoupling capacitor's bandwidth, keeping leads short. Short lead lengths on the inputs and outputs are also essential to avoid unwanted parasitic feedback around the comparators. Solder the device directly to the printed circuit board instead of using a socket.
Figure 2. MAX909 Timing Diagram
Battery-Operated Infrared Data Link
Figure 4's circuit allows reception of infrared data. The MAX403 converts the photodiode current to a voltage, and the MAX907 determines whether the amplifier output is high enough to be called a "1". The current consumption of this circuit is minimal: The MAX403 and MAX907 require typically 250A and 700A, respectively.
Overdriving the Inputs
The inputs to the MAX907/MAX908/MAX909 may be driven beyond the voltage limits given in the Absolute Maximum Ratings, as long as the current flowing into the device is limited to 25mA. However, if the inputs are overdriven, the output may be inverted. The addition of an external diode prevents this inversion by limiting the input voltage to 200mV to 300mV below ground (see Figure 3).
_______________________________________________________________________________________
9
Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
10pF 1M VCLAMP = -200mV TO -300mV
1/2 MAX907 MAX403
2 SIEMENS BP-104 PHOTODIODE 3
+5V +5V 0.1F 7 6 4 3 8 1 2 4 DATA 0.1F
ISRC
100k V1000pF
47k
100k +5V
MAX907
1000pF
Figure 3. Schottky Clamp for Input Driven Below Ground
Figure 4. Battery-Operated Infrared Data Link Consumes Only 1mA
10
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Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators
____Pin Configurations (continued)
TOP VIEW
V+ IN+ 1 2
_Ordering Information (continued)
PART MAX908CPD MAX908CSD TEMP. RANGE 0C to +70C 0C to +70C -40C to +85C -40C to +85C -55C to +125C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 14 Plastic DIP 14 SO 14 Plastic DIP 14 SO 14 CERDIP 8 Plastic DIP 8 SO Dice* 8 Plastic DIP 8 SO 8 CERDIP
MAX907/MAX908/MAX909
MAX909
8 7 6 5
QOUT QOUT GND LE
MAX908EPD MAX908ESD MAX908MJD MAX909CPA MAX909CSA MAX909C/D MAX909EPA MAX909ESA MAX909MJA
IN- 3 V- 4
DIP/SO
* Dice are specified at +25C, DC parameters only.
______________________________________________________________________________________
11
Single/Dual/Quad High-Speed, Ultra Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909
__________________________________________________________Chip Topographies
MAX907 INB- INB+ MAX909 V+
IN+ OUTB INV+ OUTA VGND 0.057" (1.45mm)
QOUT QOUT
0.051" (1.30mm)
GND
LE
INA-
INA+ 0.050" (1.27mm)
0.055" (1.40mm)
TRANSISTOR COUNT: MAX907:180 MAX908:360 SUBSTRATE CONNECTED TO GND.
TRANSISTOR COUNT: 95; SUBSTRATE CONNECTED TO 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) 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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