Ultra-Low-Power, Open-Drain,

Single/Dual-Supply Comparators

_______________________________________________________________________________________

7

PIN

MAX971/

MAX981

MAX972

MAX982

MAX973/

MAX983

DIP/SO/

µMAX

DIP/SO/

µMAX

UCSP

DIP/SO/

µMAX

DIP/SO/

µMAX

NAME

FUNCTION

1

——

—

—

GND

Ground. Connect to V- for single-supply operation.

2

2

C2

2

2

V-

Negative Supply. Connect to GND for single-supply

operation (MAX9_1).

3

——

—

—

IN+

Noninverting Comparator Input

4

——

—

—

IN-

Inverting Comparator Input

5

——

5

5

HYST

Hysteresis Input. Connect to REF if not used. Input

6

——

6

6

REF

Reference Output. 1.182V with respect to V-.

7

7

A2

7

7

V+

Positive Supply

8

——

—

—

OUT

Comparator Output. Sinks current to GND.

—

1

A1

1

1

OUTA

Comparator A Open-Drain Output. Sinks current to V-.

—

3

C1

3

3

INA+

Noninverting Input of Comparator A

—

4B1

——

INA-

Inverting Input of Comparator A

—

5B3

—

4

INB-

Inverting Input of Comparator B

—

6C3

4

—

INB+

Noninverting Input of Comparator B

—

8

A3

8

8

OUTB

Comparator B Open-Drain Output. Sinks current to V-.

Pin Description