Single/Dual, Ultra-Fast, Low-Power,

Precision TTL Comparators

6

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____________________________________________________________Pin Descriptions

PIN

MAX912

NAME

FUNCTION

1

QA

Comparator A TTL output

2

–

Q

–

A

Comparator A complementary TTL output

3, 14

GND

Logic ground. Connect both GND pins to ground.

4

LEA

5, 12

N.C.

Not internally connected

6

V-

Negative power supply: -5V for dual supplies (bypass to GND with a 0.1µF capacitor), or GND for a

single supply

7

INA-

Comparator A inverting input

8

INA+

Comparator A noninverting input

9

INB+

Comparator B noninverting input

10

INB-

Comparator B inverting input

11

V+

Positive power supply, +5V. Bypass to GND with a 0.1µF capacitor.

13

LEB

15

–

Q

–

B

Comparator B complementary TTL output

16

QB

Comparator B TTL output

PIN

MAX913

NAME

FUNCTION

1

V+

Positive power supply. Bypass to GND with a 0.1µF capacitor.

2

IN+

Noninverting input

3

IN-

Inverting input

4

V-

Negative power supply: -5V for dual supplies (bypass to GND with a 0.1µF capacitor), or GND for a

single supply

5

LE

6

GND

Logic ground

7

Q

TTL output

8

–

Q

–

Complementary TTL output

Comparator A latch enable. QA and

–

Q

–

A are latched when LEA is high or floating.

Comparator A latch is transparent when LEA is low.

Comparator B latch enable. QB and

–

Q

–

B are latched when LEB is high or floating.

Comparator B latch is transparent when LEB is low.

Latch enable. Q and

–

Q

–

are latched when LE is TTL high or floating. The comparator latch is

transparent when LE is low.