MAX921–MAX924
Ultra Low-Power,
Single/Dual-Supply Comparators
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+ to V-, V+ to GND, GND to V-................................-0.3V, +12V
Inputs
Current, IN_+, IN_-, HYST...............................................20mA
Voltage, IN_+, IN_-, HYST................(V+ + 0.3V) to (V- – 0.3V)
Outputs
Current, REF....................................................................20mA
Current, OUT_ .................................................................50mA
Voltage, REF ....................................(V+ + 0.3V) to (V- – 0.3V)
Voltage, OUT_ (MAX921/924) .....(V+ + 0.3V) to (GND – 0.3V)
Voltage OUT_ (MAX922/923)...........(V+ + 0.3V) to (V- – 0.3V)
OUT_ Short-Circuit Duration (V+ ≤ 5.5V) ...............Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C)........640mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)..842mW
16-Pin SO (derate 8.70mW/°C above +70°C) ................696mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C) ......800mW
Operating Temperature Ranges:
MAX92_C_ _ .......................................................0°C to +70°C
MAX92_E_ _.....................................................-40°C to +85°C
MAX92_MJ_ ..................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS: 5V OPERATION
(V+ = 5V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, 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.
PARAMETER
MAX923,
HYST = REF
MIN TYP MAX UNITS
MAX924
7.5
VV- V+ – 1.3
5.5 6.5
MAX921,
HYST = REF
8.5
Supply Current IN+ = IN- + 100mV
IN+ = IN- = 2.5V
11
µA
Supply Voltage Range
T
A
= +25°C, 100pF load
2.5 11 V
2.5 3.2
MAX922
4
5
2.5 3.2
Input Offset Voltage
CONDITIONS
M temp. range
±10 mV
T
A
= +25°C
C/E temp. ranges
M temp. range
±0.01 ±5
nAInput Leakage Current (IN-, IN+)
(Note 1)
±40
Input Leakage Current (HYST)
T
A
= +25°C
C/E temp. ranges
M temp. range
±0.02 nA
Input Common-Mode Voltage Range
T
A
= +25°C
V
CM
= 2.5V
C/E temp. ranges
Common-Mode Rejection Ratio
M temp. range
MAX921, MAX923
0.1 1.0 mV/V
Power-Supply Rejection Ratio
V- to (V+ – 1.3V)
V+ = 2.5V to 11V
100Hz to 100kHz
0.1 1.0 mV/V
Voltage Noise
MAX921, MAX923
Overdrive = 10mV
Overdrive = 100mV
20 µV
RMS
Hysteresis Input Voltage Range REF- 0.05V REF V
C/E temp. ranges
M temp. range
T
A
= +25°C
12
µsResponse Time
C/E temp. ranges
4
4
5
3.1 4.5
6
POWER REQUIREMENTS
COMPARATOR
