Precision electric bridge isolation amplifier circuit composed of ISO100

Published:2011/6/26 22:16:00 Author:Rebekka | Keyword: Precision electric bridge , isolation amplifier | From:SeekIC

The precision electric bridge isolation amplifier circuit composed of ISO100 is mainly used for weighing, pressure measurement systems. ISO100 is a small, inexpensive optical isolation amplifier, the internal LED light passes the excitation and the optical receiver tube receives transmission. Figure shows the the main applications of the precision electric bridge isolation amplifier circuit. The bridge outputs 0 ~-l0mV unipolar signal. It is firstly amplified for 100 times by INA101 precision instrumentation amplifier, and then sent through the 100kΩ resistor Rl unipolar input ISO100 to ensure linear operation of the ISO100.



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