LS404

HIGH PERFORMANCE

QUAD OPERATIONAL AMPLIFIERS

December 1997

.

SINGLE OR SPLIT SUPPLY OPERATION

.

LOW POWER CONSUMPTION

.

SHORT CIRCUIT PROTECTION

.

LOW DISTORTION, LOW NOISE

.

HIGH GAIN-BANDWIDTH PRODUCT

.

HIGH CHANNEL SEPARATION

Inve rting Input 2

Non-inve rting Input 2

Non-inve rting Input 1

CC

V

-

CC

V

1

2

3

4

8

5

6

7

9

10

11

12

13

14

+

O utput 3

O utput 4

Non-inverting Inp ut 4

Inverting Inp ut 4

Non-inverting Inp ut 3

Inverting Inp ut 3

-

+

-

+

-

+

-

+

Output 1

Inve rting Input 1

Output 2

PIN CONNECTIONS (top view)

ORDER CODES

Part Number

Temperature Range

Package

ND

LS404C

0

••

LS404I

-40

•

ù

LS404M

-55

••

N

DIP14

(Plastic Package)

D

SO14

(Plastic Micropackage)

DESCRIPTION

The LS404 is a high performance quad operational

amplifier with frequency and phase compensation

built into the chip. The internal phase compensation

allows stable operation as voltage follower in spite

of its high Gain-Bandwidth Product.

The circuit presents very stable electrical charac-

teristics over the entire supply voltage range, and

it particularly intended for professional and telecom

applications (active filters, etc).

The patented input stage circuit allows small input

signal swings below the negative supply voltage

and prevents phase inversion when the inputs are

over drivers.

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