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.
General Description
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.
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.
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
Features
♦ 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)
MAX900–MAX903
High-Speed, Low-Power Voltage Comparators
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
Ordering Information
19-2887; Rev. 5; 2/05
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.
Ordering Information continued at end of data sheet.
Pin Configurations continued at end of data sheet.
High-Speed A/D
Converters
High-Speed V/F
Converters
Line Receivers
Threshold Detectors
Input Trigger Circuitry
High-Speed Data
Sampling
PWM Circuits
PART TEMP RANGE PIN-PACKAGE
MAX900ACPP 0°C to +70°C 20 Plastic DIP
MAX900BCPP 0°C to +70°C 20 Plastic DIP
MAX900ACWP 0°C to +70°C 20 Wide SO
MAX900BCWP 0°C to +70°C 20 Wide SO
MAX900AEPP -40°C to +85°C 20 Plastic DIP
MAX900BEPP -40°C to +85°C 20 Plastic DIP
MAX900AEWP -40°C to +85°C 20 Wide SO
MAX900BEWP -40°C to +85°C 20 Wide SO
MAX901ACPE 0°C to +70°C 16 Plastic DIP
MAX901BCPE 0°C to +70°C 16 Plastic DIP
TOP VIEW
MAX901
1
IN- (A) IN- (D)
IN+ (A)
2
GND
3
AD
4
OUT (A)
OUT (B)
5
VEE*
IN+ (B)
IN- (B)
BC
6
7
8
DIP/SO
16
15
14
13
12
11
10
9
IN+ (D)
**
V
CC
OUT (D)
OUT (C)
VDD**
IN+ (C)
IN- (C)
IN- (A)
IN+ (A)
GND
OUT (A)
N.C.
MAX902
14
1
2
3
4
A
5
6
*
7
EE
B
DIP/SO
**
V
CC
13
N.C.
12
OUT (B)
11
LATCH (B)LATCH (A)
VDD***
10
9
IN+ (B)
IN- (B)V
8
MAX903
1
VCC**
2
IN-
3
4
*
EE
DIP/SO
*ANALOG V- AND SUBSTRATE
**ANALOG V+
***DIGITAL V+
87VDD***
6
5
OUTIN+
GND
LATCHV
MAX900–MAX903
High-Speed, Low-Power Voltage Comparators
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)
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.
Analog Supply Voltage (VCCto VEE) ...................................+12V
Digital Supply Voltage (VDDto GND) ....................................+7V
Differential Input Voltage..................(V
EE
- 0.2V) to (VCC+ 0.2V)
Common-Mode Input Voltage..........(V
EE
- 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 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
PARAMETER SYMBOL CONDITIONS
Input Offset Voltage V
Input Bias Current I
Input Offset Current I
Input Voltage Range V
OS
B
OS
CM
VCM = 0
V
= 1.4V
O
IIN+ or IIN- 3 6 4 10 µA
VCM = 0;
V
= 1.4V
O
(Note 1) VEE - 0.1
MAX900A/MAX901A
MIN TYP MAX MIN TYP MAX
0.5 2.0 1.0 4.0 mV
50 250 100 500 nA
V
-
CC
2.25
MAX900B/MAX901B/
MAX902/MAX903
V
- 0.1
EE
V
CC
2.25
-
UNITS
V
Common-Mode Rejection
Ratio
Power-Supply Rejection
Ratio
Output High Voltage V
Output Low Voltage V
Latch-Input Voltage High V
Latch-Input Voltage Low V
Latch-Input Current High I
Latch-Input Current Low I
CMRR
PSRR (Note 2) 50 150 100 250 µV/V
LH
OH
OL
LH
LL
LL
-5V < V
+2.75V,
V
O
(Note 2)
VIN > 250mV,
I
SRC
VIN > 250mV,
I
SINK
(Note 3) 1.4 2.0 1.4 2.0 V
(Note 3) 0.8 1.4 0.8 1.4 V
VLH = 3.0V
(Note 3)
VLL = 0.3V
(Note 3)
CM
= 1.4V
= 1mA
= 8mA
<
50 150 75 250 µV/V
2.4 3.5 2.4 3.5 V
0.3 0.4 0.3 0.4 V
1 20 1 20 µA
1 20 1 20 µA
MAX900–MAX903
High-Speed, Low-Power Voltage Comparators
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)
TIMING CHARACTERISTICS
(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS
Positive Analog
Supply Current
Negative Analog
Supply Current
Digital Supply
Current
Power
Dissipation
I
I
I
PD
(Note 7) 10 15 5 8 2.5 4 mA
CC
(Note 7) 7 12 3.5 6 2 3 mA
EE
(Note 7) 4 6 2 3 1 1.5 mA
DD
V
= VDD =
CC
+5V, V
EE
= 0
M AX900A/M AX901A
M AX900B/M AX901B
MIN TYP MAX MIN TYP MAX MIN TYP MAX
70 105 35 55 18 28 mW
MAX902 MAX903
PARAMETER SYMBOL CONDITIONS
VOD = 5mV,
= 15pF,
Input-to-Output High
Response Time
Input-to-Output Low
Response Time
Difference in
Response Time
Between Outputs
t
pd+
t
pd
∆t
C
L
I
= 2mA
O
(Note 4)
= 5mV,
V
OD
= 15pF,
C
L
I
= 2mA
O
(Note 4)
(Notes 4, 5) 0.5 2.0 0.5 2.0 0.5 2.0 ns
pd
MAX900A/MAX901A
MAX900B/MAX901B
MIN TYP MAX MIN TYP MAX MIN TYP MAX
8 10 8 10 8 10 ns
8 10 8 10 8 10 ns
MAX902 MAX903
UNITS
UNITS
Latch Disable to
Output High Delay
Latch Disable to
Output Low Delay
Minimum Setup Time t
Minimum Hold Time t
Minimum Latch
Disable Pulse Width
t
pd+ (D)
t
pd- (D)
t
pw (D)
(Notes 3, 6) 10 10 10 ns
(Notes 3, 6) 12 12 12 ns
(Notes 3, 6) 2 2 2 ns
s
(Notes 3, 6) 1 1 1 ns
h
(Notes 3, 6) 10 10 10 ns