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19-1936; Rev 1; 1/05
Low-Cost, 7ns, Low-Power
Voltage Comparators
General Description
The MAX9201/MAX9202/MAX9203 high-speed, low-
power, quad/dual/single comparators feature TTL logic
outputs with active internal pullups. Fast propagation
delay (7ns typ at 5mV overdrive) makes these devices
ideal for fast A/D converters and sampling circuits, line
receivers, V/F converters, and many other data-discrim-
ination, signal restoration applications.
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 MAX9201/
MAX9202/MAX9203 consume only 9mW per compara-
tor when powered from a +5V supply.
The MAX9202/MAX9203 feature output latches with TTL
compatible inputs. The comparator output states are
held when the latch inputs are driven low. The
MAX9201 provides all the same features as the
MAX9202/MAX9203 with the exception of the latches.
The MAX9201/MAX9202/MAX9203 are lower power and
lower cost upgrades to the MAX901/MAX902/MAX903
offering a 50% power savings and smaller packaging.
________________________Applications
High-Speed A/D
Converters
High-Speed V/F
Converters
Line Receivers
High-Speed Signal
Squaring/Restoration
Threshold Detectors
Input Trigger Circuitry
High-Speed Data
Sampling
PWM Circuits
TOP VIEW
____________________________Features
o Fast 7ns Propagation Delay
o Low 9mW/Comparator Power Consumption
o Separate Analog and Digital Supplies
o Flexible Analog Supply: +5V to +10V or ±5V
o Input Voltage Range Includes
Negative Supply Rail
o TTL-Compatible Outputs
o TTL-Compatible Latch Inputs
(MAX9202/MAX9203)
o Available in Space-Saving Packages
8-Pin SOT23 (MAX9203)
14-Pin TSSOP (MAX9202)
16-Pin TSSOP (MAX9201)
PART
MAX9201EUE
MAX9201ESE
MAX9202EUD
MAX9202ESD
MAX9203EKA-T
MAX9203ESA
Ordering Information
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 Narrow SO
14 TSSOP
14 Narrow SO
8 SOT23-8
8 Narrow SO
Pin Configurations
INA- 1
INA+ 2
GND 3
OUTA 4
OUTB 5
VEE 6
INB+ 7
INB- 8
MAX9201
16 IND-
15 IND+
14 VCC
13 OUTD
12 OUTC
11 VDD
10 INC+
9 INC-
INA- 1
INA+ 2
GND 3
LATCHA 4
OUTA 5
N.C. 6
VEE 7
SO/TSSOP
MAX9202
14 VCC
13 N.C.
12 OUTB
11 LATCHB
10 VDD
9 INB+
8 INB-
SO/TSSOP
VCC 1
IN+ 2
IN- 3
VEE 4
MAX9203
8 VDD
7 OUT
6 GND
5 LATCH
VDD 1
OUT 2
GND 3
LATCH 4
SO
MAX9203
SOT23
8 VCC
7 IN+
6 IN-
5 VEE
________________________________________________________________ Maxim Integrated Products 1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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Low Cost, 7ns, Low-Power
Voltage Comparators
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage (VCC - VEE) .....................................+12V
Digital Supply Voltage (VDD) .................................................+7V
Differential Input Voltage..................(VEE - 0.3V) to (VCC + 0.3V)
Common Mode Input Voltage ..........(VEE - 0.3V) to (VCC + 0.3V)
Latch Input Voltage
(MAX9202/MAX9203 only) .....................-0.3V to (VDD + 0.3V)
Output Short-Circuit Duration
To GND ......................................................................Continuous
To VDD ..................................................................................1min
Continuous Power Dissipation (TA = +70°C)
8-Pin SOT23-8 (derate 9.1mW/°C above +70°C) ...727mW/°C
8-Pin SO (derate 5.9mW/°C above +70°C).............471mW/°C
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ....727mW/°C
14-Pin SO (derate 8.3mW/°C above +70°C)...........667mW/°C
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ....755mW/°C
16-Pin SO (derate 8.7mW/°C above +70°C)...........696mW/°C
Operating Temperature Range ...........................-45°C to +85°C
Junction Temperature ......................................................+150°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 function-
al 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, GND = 0, VCM = 0, LATCH_ = logic high, TA = -40°C to +85°C. Typical values are at TA = +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
Analog Supply Voltage Range
Digital Supply Voltage Range
Input Offset Voltage
Input Bias Current
Input Offset Current
Common-Mode Input Voltage
Range
SYMBOL
CONDITIONS
VCC - VEE Referenced to VEE
VDD Referenced to GND
VOS
VCM = 0,
VOUT= 1.4V
TA = +25°C
TA = -40°C to +85°C
IB IIN+ or IIN-
IOS
VCM = 0,
VOUT = 1.4V
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
VCM Note 2
MIN
4.75
4.75
VEE - 0.1
TYP
1
1.25
50
MAX
10.5
5.25
4
7.5
5
7.0
250
450
VCC -
2.25
UNITS
V
V
mV
µA
nA
V
Common-Mode Rejection
Ratio
Power-Supply Rejection Ratio
Output High Voltage
Output Low Voltage
Latch Input Threshold Voltage
High
Latch Input Threshold Voltage
Low
Latch Input Current High
Latch Input Current Low
Input Capacitance
Differential Input Impedance
Common-Mode Input
Impedance
Positive Analog Supply
Current
CMRR
PSRR
VOH
VOL
-5.1V < VCM < +2.75V
VOUT = 1.4V
TA = +25°C
TA = -40°C to +85°C
Note 3
TA = +25°C
TA = -40°C to +85°C
(VIN+ - VIN-) > 250mV, ISOURCE = 1mA
(VIN+ - VIN-) < -250mV, ISINK = 8mA
VLH Note 4
VLL
ILH
ILL
CIN
RIND
RINCM
Note 4
VLH = 3.0V, Note 4
VLL = 0.3V, Note 4
ICC Note 5
MAX9201
MAX9202
MAX9203
50 150
µV/V
250
50 150
µV/V
250
3.0 3.5
V
0.25 0.4
V
1.4 2
V
0.8 1.4
V
0.5 3 µA
0.5 3 µA
4 pF
5 M
5.5 M
4.7 7
2.5 4.0 mA
1.3 2
2 _______________________________________________________________________________________

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Low Cost, 7ns, Low-Power
Voltage Comparators
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, TA = -40°C to +85°C. Typical values are at TA = +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Negative Analog Supply
Current
IEE Note 5
MAX9201
MAX9202
MAX9203
3.4 5.0
1.8 3.0 mA
1.0 1.6
MAX9201
2 3.0
Digital Supply Current
IDD Note 5
MAX9202
1 1.5 mA
MAX9203
0.5 0.8
Power Dissipation
MAX9201
PD
VCC = VDD = +5V,
VEE = 0V
MAX9202
MAX9203
33 44
17 24 mW
9 13
TIMING CHARACTERISTICS
(VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, TA = -40°C to +85°C. Typical values are at
TA = +25°C, unless otherwise noted.) (Notes 1, 6)
PARAMETER
Input-to-Output High
Response Time
Input-to-Output Low
Response Time
Rise Time
SYMBOL
tPD+
tPD-
tR
VOD = 5mV,
CL = 15pF,
IOUT = 2mA
VOD = 5mV,
CL = 15pF,
IOUT = 2mA
CL = 15pF,
IOUT = 2mA
CONDITIONS
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
MIN TYP MAX UNITS
79
ns
12
79
ns
12
2.0 ns
Fall Time
Difference in Response Time
Between Outputs
Latch Disable to Output High
Delay
tF
tPD
CL = 15pF,
IOUT = 2mA
Note 7
tPD+(D) Note 4
TA = +25°C
TA = +25°C
TA = -40°C to +85°C
1.0 ns
0.5 1.5
ns
2.5
10 ns
Latch Disable to Output Low
Delay
tPD-(D) Note 4
10 ns
Minimum Setup Time
tS Note 4
2 ns
Minimum Hold Time
tN Note 4
1 ns
Minimum Latch Disable
Pulse Width
tPW(D) Note 4
8 ns
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Inferred by CMRR test.
Note 3: 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 4: Specification does not apply to MAX9201.
Note 5: 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 all comparator outputs low, worst-case condition.
Note 6: Guaranteed by design. Times are for 100mV step inputs (see propagation delay characteristics in Figures 2 and 3)
Note 7: Maximum difference in propagation delay between two comparators in the MAX9201/MAX9202.
_______________________________________________________________________________________ 3

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Low Cost, 7ns, Low-Power
Voltage Comparators
Typical Operating Characteristics
(VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, VOUT = 1.4V, TA = +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE vs. TEMPERATURE
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-40
-15 10 35 60
TEMPERATURE (°C)
85
OUTPUT HIGH VOLTAGE (VOH)
vs. LOAD CURRENT
4.0
3.8
TA = +85°C
3.6
3.4 TA = +25°C
3.2
3.0
2.8
0
TA = -40°C
2 4 6 8 10
LOAD CURRENT (mA)
12
INPUT BIAS CURRENT vs. TEMPERATURE
1.8
VCM = 0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-40
-15 10 35 60
TEMPERATURE (°C)
85
400
350
300
250
200
150
100
50
0
0
OUTPUT LOW VOLTAGE (VOL)
vs. LOAD CURRENT
TA = -40°C
TA = +85°C
TA = +25°C
2 4 6 8 10
LOAD CURRENT (mA)
12
ICC SUPPLY CURRENT (PER COMPARATOR)
vs. VCC SUPPLY VOLTAGE
1.6
1.5
1.4 TA = +85°C
1.3
1.2
1.1 TA = +25°C
1.0
0.9
0.8
5
TA = -40°C
VEE = GND
6789
VCC SUPPLY VOLTAGE (V)
10
RESPONSE TIME vs. INPUT OVERDRIVE
10.0
9.5
9.0
8.5
8.0
tPD-
7.5
7.0
6.5
6.0 tPD+
5.5
5.0
0
5 10 15 20 25 30 35 40 45 50
INPUT OVERDRIVE (mV)
4 _______________________________________________________________________________________

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Low Cost, 7ns, Low-Power
Voltage Comparators
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, VOUT = 1.4V, TA = +25°C, unless otherwise noted.)
RESPONSE TIME vs. TEMPERATURE
(5mV OVERDRIVE)
8.0
7.8
7.5
7.3
tPD+
7.0
6.8 tPD-
6.5
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
RESPONSE TIME vs. LOAD CAPACITANCE
(5mV OVERDRIVE, RLOAD = 2.4k)
10.0
9.5
tPD-
9.0
8.5
8.0
tPD+
7.5
7.0
6.5
6.0
0
10 20 30 40 50 60 70 80 90
LOAD CAPACITANCE (pF)
MAX9201
PIN NAME
1, 8, 9,
16
2, 7, 10,
15
IN_-
IN_+
3 GND
4, 5, 12,
13
OUT_
6 VEE
11 VDD
14 VCC
FUNCTION
Negative Input (Channels A, B, C,
D)
Positive Input (Channels A, B, C,
D)
Ground
Output (Channels A, B, C, D)
Negative Analog Supply and
Substrate
Positive Digital Supply
Positive Analog Supply
MAX9202
PIN NAME
1, 8 IN_-
2, 9 IN_+
3 GND
4, 11
LATCH_
5, 12
OUT_
6, 13
N.C.
7 VEE
10 VDD
14 VCC
Pin Description
FUNCTION
Negative Input (Channels A, B)
Positive Input (Channels A, B)
Ground
Latch Input (Channels A, B)
Output (Channels A, B)
No Connection
Negative Analog Supply and
Substrate
Positive Digital Supply
Positive Analog Supply
_______________________________________________________________________________________ 5