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Electrical impedance tomography. Improved wideband, high CMRR (common mode rejection ratio) instrumentation amplifier
Q S Zhu1, F J Lidgey, M A Vere Hunt
1Electrical Impedance Tomography Research Group, Oxford Polytechnic, Headington, UK.
Abstract:
A wideband high CMRR instrumentation amplifier is described. Based on a previously reported current-mode design, the improved amplifier features excellent CMRR performance of better than 60 dB up to 200 kHz with unity differential gain.