CMOS Precision Half-Wave Rectifying Transconductor

概要

論文の詳細を見る
A novel CMOS half-wave rectifying transconductor is presented. The proposed circuit utilizes a simple new cascode current subtracter which is obtained from conventional cascode current mirror by a judicious reconfiguration to yield additional subtrahend signal path. The simulated DC transfer characteristics is highly linear with 1.1% linearity error up to 1.5 V differential input voltage and the blunt corner at zero-crossing is 20mV. The output resistance is greater than 23MΩ and the total harmonic distortions at 100 kHz with 1.5 V_<p-p> in the positive half cycle are better than -46.5 dB. The usable operating frequencies are up to 10 MHz with maximum peak-to-peak input voltage and 75μW power consumption.
社団法人電子情報通信学会の論文
1997-10-25