Low-voltage CMOS GM-C filter with rail-to-rail common-mode voltage

被引：0
|
作者：
Hung, CC
Halonen, K
Porra, V
Ismail, M
机构：
来源：
PROCEEDINGS OF THE 39TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS I-III | 1996年
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D O I：
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：
In this paper, a CMOS design of low-voltage 5th-order elliptic low-pass GM-C filter with rail-to-rail common-mode input voltage is introduced. The Operational Transconductance Amplifier (OTA) inside this filter is a low-voltage rail-to-tail voltage-to-current converter (V-I converter). In this V-I converter, an N-type V-I converter cell is connected in parallel with its counterpart, a P-type V-I converter cell, to achieve common-mode rail-to-rail operation. Maximum-current selecting circuits are utilized to generate constant-g(m) output currents for this OTA. This 5th-order elliptic low-pass GM-C filter operates at a supply voltage of 3V and has a cutoff frequency of 500 KHz.
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页码：921 / 924
页数：4
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