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.
____________________________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)
MAX9201/MAX9202/MAX9203
Ordering Information
PART
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
MAX9201EUE
MAX9201ESE
MAX9202EUD
MAX9202ESD
MAX9203EKA-T
MAX9203ESA
________________________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
Pin Configurations
TOP VIEW
INA- 1
INA+ 2
GND 3
OUTA 4
OUTB 5
V
EE
6
INB+ 7
INB- 8
16 IND-
15 IND+
14 V
CC
INA- 1
INA+
GND
2
3
14 V
CC
13 N.C.
12 OUTB
V
CC
1
IN+
2
8
7
V
DD
OUT
GND
LATCH
V
DD
1
OUT
2
GND
3
8
V
CC
IN+
IN-
V
EE
MAX9203
IN-
3
6
5
V
EE
4
LATCH
4
MAX9203
7
6
5
MAX9201
13 OUTD
12 OUTC
11 V
DD
10 INC+
9
INC-
LATCHA 4
OUTA 5
N.C. 6
V
EE
7
MAX9202
11 LATCHB
10 V
DD
9
8
INB+
INB-
SO
SOT23
SO/TSSOP
SO/TSSOP
________________________________________________________________
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.
Low Cost, 7ns, Low-Power
Voltage Comparators
MAX9201/MAX9202/MAX9203
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage (V
CC
- V
EE
) .....................................+12V
Digital Supply Voltage (V
DD
) .................................................+7V
Differential Input Voltage..................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Common Mode Input Voltage ..........(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Latch Input Voltage
(MAX9202/MAX9203 only) .....................-0.3V to (V
DD
+ 0.3V)
Output Short-Circuit Duration
To GND ......................................................................Continuous
To V
DD
..................................................................................1min
Continuous Power Dissipation (T
A
= +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
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, GND = 0, V
CM
= 0, LATCH_ = logic high, T
A
= -40°C
to +85°C. Typical values are at T
A
= +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
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
SYMBOL
V
DD
V
OS
I
B
I
OS
V
CM
CMRR
PSRR
V
OH
V
OL
V
LH
V
LL
I
LH
I
LL
C
IN
R
IND
R
INCM
MAX9201
I
CC
Note 5
MAX9202
MAX9203
CONDITIONS
Referenced to GND
V
CM
= 0,
V
OUT
= 1.4V
I
IN+
or I
IN-
V
CM
= 0,
V
OUT
= 1.4V
Note 2
-5.1V < V
CM
< +2.75V
V
OUT
= 1.4V
Note 3
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
3.0
3.5
0.25
1.4
0.8
1.4
0.5
0.5
4
5
5.5
4.7
2.5
1.3
7
4.0
2
mA
3
3
0.4
2
50
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
V
EE
- 0.1
50
50
1.25
MIN
4.75
4.75
1
TYP
MAX
10.5
5.25
4
7.5
5
7.0
250
450
V
CC
-
2.25
150
250
150
250
UNITS
V
V
mV
µA
nA
V
µV/V
µV/V
V
V
V
V
µA
µA
pF
MΩ
MΩ
V
CC
- V
EE
Referenced to V
EE
(V
IN+
- V
IN-
) > 250mV, I
SOURCE
= 1mA
(V
IN+
- V
IN-
) < -250mV, I
SINK
= 8mA
Note 4
Note 4
V
LH
= 3.0V, Note 4
V
LL
= 0.3V, Note 4
2
_______________________________________________________________________________________
Low Cost, 7ns, Low-Power
Voltage Comparators
MAX9201/MAX9202/MAX9203
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, GND = 0, V
CM
= 0, LATCH_ = logic high, T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
Negative Analog Supply
Current
SYMBOL
I
EE
Note 5
CONDITIONS
MAX9201
MAX9202
MAX9203
MAX9201
Digital Supply Current
I
DD
Note 5
MAX9202
MAX9203
MAX9201
Power Dissipation
P
D
V
CC
= V
DD
= +5V,
V
EE
= 0V
MAX9202
MAX9203
MIN
TYP
3.4
1.8
1.0
2
1
0.5
33
17
9
MAX
5.0
3.0
1.6
3.0
1.5
0.8
44
24
13
mW
mA
mA
UNITS
TIMING CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, GND = 0, V
CM
= 0, LATCH_ = logic high, T
A
= -40°C to +85°C. Typical values are at
T
A
= +25°C, unless otherwise noted.) (Notes 1, 6)
PARAMETER
Input-to-Output High
Response Time
Input-to-Output Low
Response Time
Rise Time
Fall Time
Difference in Response Time
Between Outputs
Latch Disable to Output High
Delay
Latch Disable to Output Low
Delay
Minimum Setup Time
Minimum Hold Time
Minimum Latch Disable
Pulse Width
SYMBOL
t
PD+
V
OD
= 5mV,
C
L
= 15pF,
I
OUT
= 2mA
V
OD
= 5mV,
C
L
= 15pF,
I
OUT
= 2mA
C
L
= 15pF,
I
OUT
= 2mA
C
L
= 15pF,
I
OUT
= 2mA
Note 7
Note 4
Note 4
Note 4
Note 4
Note 4
CONDITIONS
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +85°C
10
10
2
1
8
2.0
1.0
0.5
1.5
2.5
7
MIN
TYP
7
MAX
9
ns
12
9
ns
12
ns
ns
ns
ns
ns
ns
ns
ns
UNITS
t
PD-
t
R
t
F
∆t
PD
t
PD
+(D)
t
PD
-(D)
t
S
t
N
t
PW
(D)
Note 1:
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2:
Inferred by CMRR test.
Note 3:
Tested for +4.75V < V
CC
< +5.25V, and -5.25V < V
EE
< -4.75V with V
DD
= +5V, although permissible analog power-supply
range is 4.75V < V
CC
< +10.5V for single supply operation with V
EE
grounded.
Note 4:
Specification does not apply to MAX9201.
Note 5:
I
CC
tested for 4.75V < V
CC
< +10.5V with V
EE
grounded. I
EE
tested for -5.25V < V
EE
< -4.75V with V
CC
= +5V. I
DD
tested for
+4.75V < V
DD
< +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
Low Cost, 7ns, Low-Power
Voltage Comparators
MAX9201/MAX9202/MAX9203
Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, GND = 0, V
CM
= 0, LATCH_ = logic high, V
OUT
= 1.4V, T
A
= +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE vs. TEMPERATURE
MAX9201 toc01
INPUT BIAS CURRENT vs. TEMPERATURE
VCM = 0
1.6
INPUT BIAS CURRENT (µA)
1.4
1.2
1.0
0.8
0.6
0.4
MAX9201 toc02
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-40
-15
10
35
60
1.8
INPUT OFFSET VOLTAGE (mV)
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT HIGH VOLTAGE (V
OH
)
vs. LOAD CURRENT
MAX9201 toc03
OUTPUT LOW VOLTAGE (V
OL
)
vs. LOAD CURRENT
350
OUTPUT LOW VOLTAGE (mV)
300
250
200
150
100
50
0
0
2
4
6
8
10
12
T
A
= +85°C
T
A
= +25°C
MAX9201 toc04
MAX9201 toc06
4.0
3.8
OUTPUT HIGH VOLTAGE (V)
3.6
3.4
3.2
3.0
2.8
0
2
4
6
8
10
400
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
12
LOAD CURRENT (mA)
LOAD CURRENT (mA)
I
CC
SUPPLY CURRENT (PER COMPARATOR)
vs. V
CC
SUPPLY VOLTAGE
MAX9201 toc05
RESPONSE TIME vs. INPUT OVERDRIVE
10.0
9.5
9.0
RESPONSE TIME (ns)
8.5
8.0
7.5
7.0
6.5
6.0
t
PD+
t
PD-
1.6
1.5
ICC SUPPLY CURRENT (mA)
1.4
1.3
1.2
1.1
1.0
0.9
0.8
5
6
7
8
9
TA = -40°C
V
EE
= GND
TA = +25°C
TA = +85°C
5.5
5.0
10
0
5
10 15 20 25 30 35 40 45 50
INPUT OVERDRIVE (mV)
VCC SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
Low Cost, 7ns, Low-Power
Voltage Comparators
MAX9201/MAX9202/MAX9203
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, GND = 0, V
CM
= 0, LATCH_ = logic high, V
OUT
= 1.4V, T
A
= +25°C, unless otherwise noted.)
RESPONSE TIME vs. TEMPERATURE
(5mV OVERDRIVE)
MAX9201 toc07
RESPONSE TIME vs. LOAD CAPACITANCE
(5mV OVERDRIVE, R
LOAD
= 2.4kΩ)
9.5
t
PD-
RESPONSE TIME (ns)
9.0
8.5
8.0
7.5
7.0
t
PD+
MAX9201 toc08
8.0
7.8
RESPONSE TIME (ns)
7.5
7.3
t
PD+
7.0
6.8
6.5
t
PD-
10.0
6.5
6.0
0
10
20
30
40
50
60
70
80
90
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
LOAD CAPACITANCE (pF)
Pin Description
MAX9201
PIN
1, 8, 9,
16
2, 7, 10,
15
3
4, 5, 12,
13
6
11
14
NAME
IN_-
IN_+
GND
OUT_
V
EE
V
DD
V
CC
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
10
Positive Analog Supply
14
V
DD
V
CC
MAX9202
PIN
1, 8
2, 9
3
4, 11
5, 12
6, 13
7
NAME
IN_-
IN_+
GND
LATCH_
OUT_
N.C.
V
EE
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
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