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Proceedings Paper

A new technique for improving the gain error of the instrumentation amplifier
Author(s): Mehdy K. Farzaneh
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Paper Abstract

This new technique of signal amplification is not sensitive to drift and effective feedback resistor life times. The reduction of the gain error to second order effect has been observed by spice simulation. The error is reduced to less than 10-6 without calibration. In addition the amplifier stability is guaranteed when used as a chopper amplifier. The idea is to rotate the resistor chain by mean of MOS switches and take the average of the amplified output with a microcontroller.

Paper Details

Date Published:
Proc. SPIE 6035, Microelectronics: Design, Technology, and Packaging II, 60351W; doi: 10.1117/12.638747
Show Author Affiliations
Mehdy K. Farzaneh, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 6035:
Microelectronics: Design, Technology, and Packaging II
Alex J. Hariz, Editor(s)

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