A highly linear open-loop full CMOS high-speed sample-and-hold stage

Khayrollah Hadidi; Masahiro Sasaki; Tadatoshi Watanabe; Daigo Muramatsu; Takashi Matsumoto

A highly linear open-loop full CMOS high-speed sample-and-hold stage

Khayrollah Hadidi, Masahiro Sasaki, Tadatoshi Watanabe, Daigo Muramatsu, Takashi Matsumoto

Research output: Contribution to journal › Article › peer-review

Abstract

Based on a cascode-driver source-follower buffer, and a passive sampling architecture, we have implemented a differential sample-and-hold circuit in a 0.8 μm digital CMOS process. The buffer which eliminates channel length modulation of the driver device behaves very linearly, in low frequencies or sampled-data applications. This is the main reason that this first open-loop CMOS sample-and-hold can achieves very high linearity while functions at very high sampling rate. The circuit achieved -61 dB THD for a 1.42 V_p-p 10 MHz input signal at a 103 MHz sampling rate and -55.9 dB THD for a 1.22 V_p-p 20 MHz at a 101 MHz sampling rate.

Original language	English
Pages (from-to)	261-266
Number of pages	6
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E82-A
Issue number	2
Publication status	Published - 2000 Jan 1
Externally published	Yes

Keywords

CMOS buffers
Full CMOS S/H
Open-loop S/H
S/H
Sample-and-hold

ASJC Scopus subject areas

Signal Processing
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering
Applied Mathematics

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A highly linear open-loop full CMOS high-speed sample-and-hold stage. / Hadidi, Khayrollah; Sasaki, Masahiro; Watanabe, Tadatoshi; Muramatsu, Daigo; Matsumoto, Takashi.

In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E82-A, No. 2, 01.01.2000, p. 261-266.

Research output: Contribution to journal › Article › peer-review

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