INDUSTRIAL VOLTAGE AMPLIFIER IC

AM401

analog microelectronics

Mars 2006

Analog Microelectronics GmbH

Phone:

+49 (0)6131/91 073 – 0

2/21

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.3

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

CONTENTS

GENERAL DESCRIPTION .................................................................................................3

BLOCK DIAGRAM .............................................................................................................3

ELECTRICAL SPECIFICATIONS......................................................................................4

BOUNDARY CONDITIONS ................................................................................................6

DETAILED DESCRIPTION OF FUNCTIONS.....................................................................7

AM401’s transfer function............................................................................................................................................... 8

Setting the instrumentation amplifier............................................................................................................................. 8

Setting the voltage amplification ..................................................................................................................................... 9

Selecting the supply voltage ............................................................................................................................................. 9

Points to note: initial operation of AM401 ................................................................................................................... 10

APPLICATIONS................................................................................................................10

Application 1 – Differential input signal, voltage output signal of 0...5/10V............................................................. 10

Application 2 – Voltage output signal of 0...5/10V, current-driven sensing element................................................ 10

Application 3 – Differential input signal, voltage output signal of 0.5...4.5V............................................................ 10

Application 4 – Input voltage (referenced to ground) of 0...1V and output voltage of 0...10V................................ 10

Application 5 – Connecting up OP2 as a voltage reference ........................................................................................ 10

CIRCUIT TOPOLOGY......................................................................................................10

Topology of the 0...5/10V application ........................................................................................................................... 10

Topology of the 0.5...4.5V application........................................................................................................................... 10

BLOCK DIAGRAM AND PINOUT....................................................................................10

EXAMPLE APPLICATIONS .............................................................................................10

DELIVERY........................................................................................................................10

PACKAGE DIMENSIONS .................................................................................................10

FURTHER READING .......................................................................................................10