Precision amplifier for bridge circuits

AM457

analog microelectronics

May 2005

Analog Microelectronics GmbH

Phone: +49 (0)6131/91 073 – 0

2/10

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.2

Internet: www.analogmicro.de

Email:

info@analogmicro.de

TABLE OF CONTENTS

Features

3

Block diagram

3

General description

3

Electrical specifications

4

Circuit

5

Description of functions

6

Example application

7

Block diagram and pinout

9

Delivery options

10

Further reading

10

TABLE OF FIGURES AND TABLES

Table 1: Specifications

4

Table 2: Circuit

5

Table 3: Pin configuration

9

Figure 1: Block diagram

3

Figure 2: Schematic circuit diagram for resistance bridges with low sensitivity

7

Figure 3: Block diagram of AM457

9

Figure 4: AM457 Pin out

9

Figure 5 : SOP 8 Package dimensions

10