Ultra Low-Power,

Single/Dual-Supply Comparators

6

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__________________________________________Typical Operating Characteristics

-2

2

10

18

RESPONSE TIME FOR VARIOUS

INPUT OVERDRIVES

0

4

RESPONSE TIME (

µs)

614

2

0

5

100

3

1

50mV

100mV

20mV

10mV

-2

2

10

18

RESPONSE TIME FOR VARIOUS

INPUT OVERDRIVES

0

4

RESPONSE TIME (

µs)

614

2

0

5

100

3

1

50mV

100mV

20mV

10mV

10

0.01

1.0

2.0

2.5

MAX924 RESPONSE TIME

AT LOW SUPPLY VOLTAGES

0.1

1

SINGLE-SUPPLY VOLTAGE (V)

1.5

±20mV OVERDRIVE

±100mV

OVERDRIVE

100

0.1

1.0

2.0

2.5

MAX924 RESPONSE TIME

AT LOW SUPPLY VOLTAGES

1

10

SINGLE-SUPPLY VOLTAGE (V)

1.5

SOURCE CURRENT INTO 0.75V LOAD

200

0

0

1.0

3.0

5.0

SHORT-CIRCUIT SOURCE CURRENT

vs. SUPPLY VOLTAGE

40

160

TOTAL SUPPLY VOLTAGE (V)

2.0

4.0

120

80

20

60

180

140

100

OUT CONNECTED TO V-

20

0

010

SHORT-CIRCUIT SINK CURRENT

vs. SUPPLY VOLTAGE

TOTAL SUPPLY VOLTAGE (V)

5

10

OUT CONNECTED TO V+

GND CONNECTED TO V-

PIN

MAX921

MAX922

MAX923

NAME

FUNCTION

1

–

–

GND

Ground. Connect to V- for single-supply operation. Output swings from V+ to GND.

–

1

OUTA

Comparator A output. Sinks and sources current. Swings from V+ to V-.

2

2

2

V-

Negative supply. Connect to ground for single-supply operation (MAX921).

1

3

–

–

IN+

Noninverting comparator input

–

3

3

INA+

Noninverting input of comparator A

4

–

–

IN-

Inverting comparator input

____________________________________________________________Pin Descriptions

–

4

–

INA-

Inverting input of comparator A