NDLI: Design of a gain-boosted telescopic fully differential amplifier with CMFB circuit

Content Provider	IEEE Xplore Digital Library
Author	Liang Wang Yong-Sheng Yin Xian-Zhong Guan
Copyright Year	2012
Description	Author affiliation: Institute of VLSI Design Hefei University of Technology, Hefei, China (Liang Wang; Yong-Sheng Yin; Xian-Zhong Guan)
Abstract	Based on Chartered 0.18μ 1.8V 1P5M CMOS process, a gain-boosted telescopic fully differential amplifier with CMFB circuit is designed and used in the sampling and holding circuit of a 14-bit, pipelined A/D converter which is supplied by 1.8 V power. In order to meet specifications, gain-boosting technique is used to improve the gain of OTA and common-mode feedback circuit is elaborately designed. Two-stages CMFB have a stable transient output of 710mV and 1V, respectively. At last, simulation results showed that 106dB loop gain, 1.13GHz unity-gain bandwidth and a phase margin of 71.75 ° have been achieved for the specifications of S/H circuit. The designed circuit has been applied to the front end of a 14-bit, 100MS/s pipelined ADC.
Starting Page	252
Ending Page	255
File Size	480898
Page Count	4
File Format	PDF
ISBN	9781457714146
e-ISBN	9781457714153
DOI	10.1109/CECNet.2012.6201576
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Operational amplifiers Gain-Boost CMOS Operational Amplifier Feedback circuits Capacitors Bandwidth CMFB Transistors Voltage control Gain
Content Type	Text
Resource Type	Article

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