AM457 Datasheet, PDF (1/10 Pages) Analog Microelectronics – Precision amplifier for bridge circuits

Precision amplifier for bridge circuits
AM457
PRINCIPLE FUNCTION
Adjustable amplification of differential voltage signals (±5 to ±100mV FS)
to an adjustable, ratiometric output voltage of between
0.2 and Vcc-0.2Volt with a diagnostic unit
V_CC = 5V ± 5%
Differential input
voltages
( 5... 100mV FS)
AM457
I_out = 2mA
TYPICAL APPLICATIONS
• Precision amplifiers for bridge circuits with
low sensitivity:
for ceramic measurement cells
for DMS sensing elements
for GMR sensing elements
• Sensor amplification with functional control
Diagnostic unit
e.g. V_OUT = 0.2...V_CC-0.2V
(adjustable)
e.g. 0.5...4.5V
ratiometric
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: www.analogmicro.de
Phone: [phone] – 0
Fax: [phone] – 30
Email: [e-mail]
May 2005
1/10
Rev. 2.2