A feedforward compensation scheme for high gain wideband amplifiers

被引：0
|
作者：
Thandri, BK [1 ]
Silva-Martinez, J [1 ]
Maloberti, F [1 ]
机构：
[1] Texas A&M Univ, Dept Elect Engn, Analog & Mixed Signal Ctr, College Stn, TX 77840 USA
来源：
ICECS 2001: 8TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS, VOLS I-III, CONFERENCE PROCEEDINGS | 2001年
关键词：
D O I：
10.1109/ICECS.2001.957411
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A No-Capacitor FeedForward (NCFF) compensation which uses pole-zero cancellation to obtain high gain, high GBW and a good phase margin is proposed. Left half plane (LHP) zeros produced due to feedforward path cause a +90degrees shift in the phase and are used to cancel the -90degrees shifts in the phase caused by the poles. A fully differential OTA using the NCFF compensation scheme has been designed using AMI 0.5mu technology; do gain of 97 dB, GBW of 325 MHz, settling time of 5 ns and phase margin of around 90degrees are achieved.
引用
收藏
页码：1115 / 1118
页数：4
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