AN ENHANCED CURRENT-CONVEYOR BASED INSTRUMENTATION AMPLIFIER WITH HIGH CMRR

Year 2017, Volume: 17 Issue: 2, 3481 - 3487, 27.07.2017

Uğur Çini

Abstract

In this work, a current-mode instrumentation amplifier
with common-mode current cancellation is realized using enhanced CCII topology.
Detailed CMRR analysis is performed and parameters for maximizing the CMRR are
defined. The proposed structure is simulated using SPICE and realized on a
prototyping board. According to the simulation and measurement results the
proposed circuit shows superior CMRR performance compared to other well-known
current-mode instrument amplifier topologies.

Keywords

current-mode instrumentation amplifier, CMRR, current conveyors

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