DUAL OPERATIONAL AMPLIFIERS

AZ4558

1

Issue Date: Nov. 2002

Advanced Analog Circuits

Data Sheet

Rev.1.0

General Description

The AZ4558 consists of two high performance opera-

tional amplifiers. The IC features high gain, high input

resistance, excellent channel separation, wide range of

operating voltage and internal frequency compensa-

tion. It is specifically suitable for applications in differ-

ential-in, differential-out as well as in potential-metric

amplifiers and where gain and phase matched channels

are mandatory. The AZ4558 contains

± 18Vmaximum

power supply voltage.

The AZ4558 is available in DIP-8 or SOIC-8 package.

Features

·

Internal frequency compensation

·

Large DC voltage gain with 100 dB typical

·

High input resistance with 5M

Ω typical

·

Low input noise voltage with 10nV/

·

Maximum power supply voltages:

± 18V

·

Compatible with NJM 4558

Applications

·

Audio AC-3 decoded system

·

Audio amplifier

Pin Configuration

DIP-8

SOIC-8

Functional Block Diagram

Figure 2. Pin Configuration of AZ4558

Figure 3. Representative Schematic Diagram of AZ4558 (Each amplifier)

- Inpu t

+ Inpu t

3.1 K

Ω

7 .1 K

Ω

7.1

K

Ω

87 pF

4 80

Ω

4.2 K

Ω

36 K

Ω

15 0 Ω

1 0pF

25 Ω

25 Ω

V

EE

Out pu t

V

CC

HZ

SOIC-8/DIP-8

Top View

Figure 1. Package Types of AZ4558

8

7

OUTPUT 2

6

INPUT 2-

5

INPUT 2+

1

2

3

4

OUTPUT 1

INPUT 1-

INPUT 1+