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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
General Description
The MAX900–MAX903 high-speed, low-power, single/
dual/quad voltage comparators feature differential ana-
log inputs and TTL-logic outputs with active internal pull-
ups. Fast propagation delay (8ns typ at 5mV overdrive)
makes the MAX900–MAX903 ideal for fast A/D convert-
ers and sampling circuits, line receivers, V/F converters,
and many other data-discrimination applications.
All comparators can be powered from separate analog
and digital power supplies or from a single combined sup-
ply 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.
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.
♦
8ns (typ) Propagation Delay
♦
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 Outputs
♦
TTL-Compatible Latch Inputs (Except MAX901)
Features
MAX900–MAX903
Ordering Information
PART
MAX900ACPP
MAX900BCPP
MAX900ACWP
MAX900BCWP
MAX900AEPP
MAX900BEPP
MAX900AEWP
MAX900BEWP
MAX901ACPE
MAX901BCPE
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
20 Plastic DIP
20 Wide SO
20 Wide SO
20 Plastic DIP
20 Plastic DIP
20 Wide SO
20 Wide SO
16 Plastic DIP
16 Plastic DIP
Applications
High-Speed A/D
Converters
High-Speed V/F
Converters
Line Receivers
Threshold Detectors
Input Trigger Circuitry
High-Speed Data
Sampling
PWM Circuits
Ordering Information continued at end of data sheet.
Pin Configurations
TOP VIEW
MAX901
IN- (A) 1
IN+ (A) 2
GND 3
OUT (A) 4
OUT (B) 5
V
EE
* 6
IN+ (B) 7
IN- (B) 8
A
D
16 IN- (D)
15 IN+ (D)
14 V
CC
**
13 OUT (D)
12 OUT (C)
11 V
DD
**
10 IN+ (C)
9
IN- (C)
IN- (A) 1
IN+ (A)
GND
2
3
B
A
MAX902
14 V
CC
**
13 N.C.
12 OUT (B)
11 LATCH (B)
10 V
DD
***
9
8
IN+ (B)
IN- (B)
IN-
3
V
CC
**
1
IN+
2
MAX903
8
7
6
5
V
DD
***
OUT
GND
LATCH
LATCH (A) 4
OUT (A) 5
N.C. 6
V
EE
* 7
V
EE
*
4
B
C
DIP/SO
*ANALOG V- AND SUBSTRATE
**ANALOG V+
***DIGITAL V+
DIP/SO
DIP/SO
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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.
High-Speed, Low-Power Voltage Comparators
MAX900–MAX903
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage (V
CC
to V
EE
) ...................................+12V
Digital Supply Voltage (V
DD
to GND) ....................................+7V
Differential Input Voltage..................(V
EE
- 0.2V) to (V
CC
+ 0.2V)
Common-Mode Input Voltage..........(V
EE
- 0.2V) to (V
CC
+ 0.2V)
Latch-Input Voltage (MAX900/MAX902/
MAX903 only) .........................................-0.2V to (V
DD
+ 0.2V)
Output Short-Circuit Duration
To GND.......................................................................Indefinite
To V
DD
...............................................................................1min
Internal Power Dissipation................................................500mW
Derate above +100°C ................................................10mW/°C
Operating Temperature Ranges:
MAX900–MAX903_C_ _ .......................................0°C to +70°C
MAX900–MAX903_E_ _ ....................................-40°C to +85°C
Junction Temperature........................................-65°C to +160°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
CC
= +5V, V
EE
= -5V, V
DD
= +5V, LE1–LE4 = logic high,
T
A
= +25°C,
unless otherwise noted.)
MAX900A/MAX901A
PARAMETER
SYMBOL
CONDITIONS
MIN
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
V
OS
I
B
I
OS
V
CM
V
CM
= 0
V
O
= 1.4V
I
IN
+ or I
IN
-
V
CM
= 0;
V
O
= 1.4V
(Note 1)
-5V < V
CM
<
+2.75V,
V
O
= 1.4V
(Note 2)
(Note 2)
V
IN
> 250mV,
I
SRC
= 1mA
V
IN
> 250mV,
I
SINK
= 8mA
(Note 3)
(Note 3)
V
LH
= 3.0V
(Note 3)
V
LL
= 0.3V
(Note 3)
0.8
2.4
V
EE
- 0.1
TYP
0.5
3
50
MAX
2.0
6
250
V
CC
-
2.25
V
EE
- 0.1
MAX900B/MAX901B/
MAX902/MAX903
MIN
TYP
1.0
4
100
MAX
4.0
10
500
V
CC
-
2.25
mV
µA
nA
V
UNITS
Common-Mode Rejection
Ratio
Power-Supply Rejection
Ratio
Output High Voltage
Output Low Voltage
Latch-Input Voltage High
Latch-Input Voltage Low
Latch-Input Current High
Latch-Input Current Low
CMRR
50
150
75
250
µV/V
PSRR
V
OH
V
OL
V
LH
V
LL
I
LH
I
LL
50
3.5
0.3
1.4
1.4
1
1
150
2.4
0.4
2.0
0.8
20
20
100
3.5
0.3
1.4
1.4
1
1
250
µV/V
V
0.4
2.0
V
V
V
20
20
µA
µA
2
_______________________________________________________________________________________
High-Speed, Low-Power Voltage Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, LE1–LE4 = logic high,
T
A
= +25°C,
unless otherwise noted.)
MAX900A/MAX901A
MAX900B/MAX901B
MIN
TYP
MAX
10
15
MAX902
MIN
TYP
5
MAX
8
MIN
MAX903
TYP
2.5
MAX
4
mA
MAX900–MAX903
PARAMETER
SYMBOL
CONDITIONS
UNITS
Positive Analog
Supply Current
Negative Analog
Supply Current
Digital Supply
Current
Power
Dissipation
I
CC
(Note 7)
I
EE
(Note 7)
7
12
3.5
6
2
3
mA
I
DD
PD
(Note 7)
V
CC
= V
DD
=
+5V, V
EE
= 0
4
70
6
105
2
35
3
55
1
18
1.5
28
mA
mW
TIMING CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
DD
= +5V, LE1–LE4 = logic high,
T
A
= +25°C,
unless otherwise noted.)
MAX900A/MAX901A
MAX900B/MAX901B
MIN
TYP
MAX
MIN
MAX902
TYP
MAX
MIN
MAX903
UNITS
TYP
MAX
PARAMETER
SYMBOL
CONDITIONS
Input-to-Output High
Response Time
t
pd+
V
OD
= 5mV,
C
L
= 15pF,
I
O
= 2mA
(Note 4)
V
OD
= 5mV,
C
L
= 15pF,
I
O
= 2mA
(Note 4)
(Notes 4, 5)
8
10
8
10
8
10
ns
Input-to-Output Low
Response Time
Difference in
Response Time
Between Outputs
Latch Disable to
Output High Delay
t
pd
-
8
10
8
10
8
10
ns
∆t
pd
0.5
2.0
0.5
2.0
0.5
2.0
ns
t
pd+ (D)
(Notes 3, 6)
10
10
10
ns
Latch Disable to
Output Low Delay
Minimum Setup Time
Minimum Hold Time
Minimum Latch
Disable Pulse Width
t
pd- (D)
(Notes 3, 6)
12
12
12
ns
t
s
t
h
(Notes 3, 6)
(Notes 3, 6)
2
1
2
1
2
1
ns
ns
t
pw (D)
(Notes 3, 6)
10
10
10
ns
_______________________________________________________________________________________
3
