A 1.8 VCMOS linear transconductor and its application to continuous-time filters

被引:0
|
作者
Zhang, XA [1 ]
El-Masry, EL [1 ]
机构
[1] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3J 2X4, Canada
关键词
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暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 1.8 V body-driven CMOS fully balanced transconductor is presented. It is linearly tunable, possesses 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 < V-tune < 1.58 V. Using 0.18 mum N-well CMOS process, a 3(rd) 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 (V-pp). With the transconductor noise integrated over I MHz, 45 dB dynamic range is obtained.
引用
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页码:1012 / 1015
页数:4
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