Ultra Low-Power,
Single/Dual-Supply Comparators
MAX921–MAX924
Typical Operating Characteristics (continued)
(V+ = 5V, V- = GND, T
A
= +25°C, unless otherwise noted).
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
MAX921/924-TOC13
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
MAX921/924-TOC14
MAX924 RESPONSE TIME
AT LOW SUPPLY VOLTAGES
MAX921/924-TOC15
10
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
5
4
3
2
1
0
100mV
20mV
50mV
10mV
5
4
3
2
1
0
50mV
100mV
20mV
10mV
RESPONSE TIME (ms)
1
INPUT VOLTAGE (mV)
INPUT VOLTAGE (mV)
100
0
0.1
±100mV
OVERDRIVE
0.01
±20mV
OVERDRIVE
0
100
-2
2
6
10
14
18
-2
2
6
10
14
18
1.0
1.5
2.0
2.5
RESPONSE TIME (μs)
RESPONSE TIME (μs)
SINGLE-SUPPLY VOLTAGE (V)
MAX924 RESPONSE TIME
AT LOW SUPPLY VOLTAGES
MAX921/924-TOC16
SHORT-CIRCUIT SOURCE CURRENT
vs. SUPPLY VOLTAGE
MAX121/124-TOC17
SHORT-CIRCUIT SINK CURRENT
vs. SUPPLY VOLTAGE
OUT CONNECTED TO V+
GND CONNECTED TO V-
SINK CURRENT (mA)
20
MAX121/124-TOC18
100
SOURCE CURRENT INTO 0.75V LOAD
CURRENT (mA)
10
200
180
SOURCE CURRENT (mA)
160
140
120
100
80
60
40
OUT CONNECTED TO V-
1
10
SINK CURRENT AT V
OUT
= 0.4V
0.1
1.0
1.5
2.0
2.5
SINGLE-SUPPLY VOLTAGE (V)
20
0
0
1.0
2.0
3.0
4.0
5.0
TOTAL SUPPLY VOLTAGE (V)
0
0
5
TOTAL SUPPLY VOLTAGE (V)
10
____________________________________________________________Pin Descriptions
PIN
MAX921
1
–
2
3
–
4
–
6
MAX922
–
1
2
–
3
–
4
MAX923
–
1
2
–
3
–
–
NAME
GND
OUTA
V-
IN+
INA+
IN-
INA-
FUNCTION
Ground. Connect to V- for single-supply operation. Output swings from V+ to GND.
Comparator A output. Sinks and sources current. Swings from V+ to V-.
Negative supply. Connect to ground for single-supply operation (MAX921).
Noninverting comparator input
Noninverting input of comparator A
Inverting comparator input
Inverting input of comparator A
_______________________________________________________________________________________
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