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DESCRIPTION

The LS404 is a high performance quad operation-

al amplifier with frequency and phase compensa-

tion built into the chip. The internal phase compen-

sation 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

is particularly intended for professional and tele-

com applications (active filter, 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.

ORDER CODE

N = Dual in Line Package (DIP)

D = Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)

Part Number

Temperature Range

Package

ND

LS404C

0°C, +70°C

••

LS404I

-40°C, +105°C

••

LS404M

-55°C, +125°C

••

Example : LS204CN

N

DIP14

(Plastic Package)

D

SO14

(Plastic Micropackage)

Inverting Input 2

Non-inverting Input 2

Non-inverting Input 1

CC

V

-

CC

V

1

2

3

4

8

5

6

7

9

10

11

12

13

14

+

Output 3

Output 4

Non-inverting Input 4

Inverting Input 4

Non-inverting Input 3

Inverting Input 3

-

+

-

+

-

+

-

+

Output 1

Inverting Input 1

Output 2

HIGH PERFORMANCE

QUAD OPERATIONAL AMPLIFIER

November 2001

LS404