Technical Program

Paper Detail

Paper:ASP-P13.5
Session:Analog Circuits I
Time:Wednesday, May 26, 09:30 - 11:00
Presentation: Poster
Topic: Analog Signal Processing: Analog Signal Processing and Filtering
Title: A 1.8 V CMOS LINEAR TRANSCONDUCTOR AND ITS APPLICATION TO CONTINUOUS-TIME FILTERS
Authors: Xuguang Zhang; Dalhousie University 
 Ezz I. El-Masry; Dalhousie University 
Abstract: A 1.8 V body-driven CMOS fully balanced transconductor is presented. It is linearly tunable, posses low distortion and utilizes a novel common-mode feedback scheme. Simulation shows common-mode voltage varies only 1.3 mV over the tuning range of 1.2 V<vtune<1.58 V. Using 0.18 um N-well CMOS process, a 3rd order elliptic low-pass filter is implemented using the proposed transconductor. The total harmonic distortion (THD) is more than -46 dB for fully differential input signals up to 0.8 V peak to peak (Vpp). With the transconductor noise integrated over 1 MHz, 45 dB dynamic range is obtained.
 
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