A Temperature Compensation Technique for a Dynamic Amplifier in Pipelined-SAR ADCs

被引：10

作者：

Zhang, Minglei ^{[1
,2
]}

Noh, Kyoohyun ^{[2
]}

Fan, Xiaohua ^{[1
]}

Sanchez-Sinencio, Edgar ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R China

[2] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA

来源：

IEEE SOLID-STATE CIRCUITS LETTERS | 2018年 / 1卷 / 01期

关键词：

Common-mode (CM) detector; dynamic amplifier; pipelined-successive approximation register (SAR) analog-to-digital converter (ADC); residue amplifier; temperature compensation;

D O I：

10.1109/LSSC.2018.2794783

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter presents a temperature compensation technique for the gain of a dynamic amplifier in a pipelined-successive approximation register analog-to-digital converter. A fully dynamic temperature-dependent common-mode detector is proposed to assist in the compensation process of the dynamic amplifier. A single-stage dynamic amplifier with the proposed temperature compensation technique was designed and fabricated in a 130-nm CMOS process with an active area of 0.0135 mm(2). With a 1.2-V power supply, the dynamic amplifier consumes 0.11 mW at 50 MS/s, and the proposed technique reduces the gain variation of the dynamic amplifier from 12.5% to 2.1% across the temperature range of -20 degrees C to 85 degrees C.

引用

页码：10 / 13

页数：4

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