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A Differential Voltage Reference Generator for Pipelined ADCs
ZHANG Hong * #,WENG Xunwei,LI Xue,CHEN Yongliang,CHENG Jun
School of Electronic and Information Engineering, Xi'an Jiaotong University, 710049
*Correspondence author
#Submitted by
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Funding: Research Foundation for the Doctoral Program of Higher Education of China, Grant (No.No. 20090201120025))
Opened online:28 December 2012
Accepted by: none
Citation: ZHANG Hong,WENG Xunwei,LI Xue.A Differential Voltage Reference Generator for Pipelined ADCs[OL]. [28 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4505924
 
 
A differential voltage reference generator for pipelined analog-to-digital converters (ADCs) is presented in this paper. A modified Brokaw bandgap reference (BGR) is adopted to generate an adjustable sub-1V reference voltage. A new single-ended to differential converter based on current conversion is proposed to obtain the required differential voltage reference from the output of BGR directly. Fabricated in TSMC 0.18 um CMOS technology, the proposed circuit generates a 0.5-V differential reference voltage with a temperature coefficient of less than 46 ppm/ oC. The power consumption is 3.5 mW under a 1.8-V power supply. ?????
Keywords:Analog IC design; Bandgap;Voltage reference; Pipelined ADC
 
 
 

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