Ultra Low-Power,
Single/Dual-Supply Comparators
MAX921–MAX924
ELECTRICAL CHARACTERISTICS: 3V OPERATION (continued)
(V+ = 3V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Voltage Noise
Hysteresis Input Voltage Range
Response Time
Output High Voltage
CONDITIONS
V- to (V+ – 1.3V)
V+ = 2.5V to 11V
100Hz to 100kHz
MAX921, MAX923
T
A
= +25°C, 100pF load
MAX92_
MAX922/
MAX923
MAX921/
MAX924
Overdrive = 10mV
Overdrive = 100mV
V+ – 0.4
V- + 0.4
V
GND + 0.4
MIN
V-
0.2
0.1
20
REF- 0.05V
14
5
TYP
MAX
V+ – 1.3
1
1
REF
UNITS
V
mV/V
mV/V
µV
RMS
V
µs
V
C/E temp. ranges: I
OUT
= 10mA;
M temp. range: I
OUT
= 6mA
C/E temp. ranges: I
OUT
= 0.8mA;
M temp. range: I
OUT
= 0.6mA
C/E temp. ranges: I
OUT
= 0.8mA;
M temp. range: I
OUT
= 0.6mA
C temp. range
E temp. range
M temp. range
T
A
= +25°C
C/E temp. ranges
M temp. range
T
A
= +25°C
C/E temp. ranges
M temp. range
Output Low Voltage
REFERENCE
Reference Voltage
1.170
1.158
1.147
15
6
4
8
4
2
1.182
1.194
1.206
1.217
V
25
µA
15
µA
100
µV
RMS
Source Current
Sink Current
Voltage Noise
100Hz to 100kHz
Typical Operating Characteristics
(V+ = 5V, V- = GND, T
A
= +25°C, unless otherwise noted).
OUTPUT VOLTAGE LOW
vs. LOAD CURRENT
MAX921/4-TOC1
OUTPUT VOLTAGE HIGH vs.
LOAD CURRENT
MAX921/924-TOC2
REFERENCE OUTPUT VOLTAGE vs.
OUTPUT LOAD CURRENT
REFERENCE OUTPUT VOLTAGE (V)
SINK
1.185
1.180
SOURCE
1.175
1.170
1.165
1.160
1.155
V+ = 5V
OR
V+ = 3V
0
5
10
15
20
25
30
MAX921/924-TOC3
2.5
V+ = 5V
5.0
4.5
4.0
V
OH
(V)
3.5
3.0
2.5
V+ = 5V
1.190
2.0
V+ = 3V
V
OL
(V)
1.5
1.0
0.5
2.0
0.0
0
4
8
12
16
20
LOAD CURRENT (mA)
1.5
0
10
20
30
V+ = 3V
40
50
LOAD CURRENT (mA)
OUTPUT LOAD CURRENT (μA)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
