Precision amplifier for bridge circuits

AM467

analog microelectronics

February 2011

Analog Microelectronics GmbH

Phone:

+49 (0)6131/91 073 – 0

1/9

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 1.1

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

PRINCIPLE FUNCTION

Adjustable offset and span output signal for differential input signals

from 0 to

±5 mV FS up to 0 to ±100 mV FS.

Ratiometric output voltage of 0.2V to Vcc-0.2 V

TYPICAL APPLICATIONS

• Differential amplifiers for ceramic sensing elements

• Differential amplifiers for DMS sensing elements

• Differential amplifiers for GMR sensing elements

• Amplifier for industrial and automotive applications

AM467

V

= 5V 5%

CC

Differential

input

voltages

( 5... 100mV FS)

V

0,2V -0,2V

(adjustable)

e.g.0,5...4,5V

ratiometric

OUT

CC

=

...

_

+

_

+

_

+