Thermal-Noise-Canceling Switched-Capacitor Circuit

Bibhu Datta Sahoo; Amol Inamdar

doi:10.1109/TCSII.2016.2530878

Thermal-Noise-Canceling Switched-Capacitor Circuit

Bibhu Datta Sahoo
, Amol Inamdar

Department of Electrical Engineering

HYPRES, Inc.

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

19 Scopus citations

Abstract

Thermal noise has been a fundamental bottleneck in building high dynamic range switched capacitor (SC) circuits. This brief proposes an SC thermal-noise-canceling circuit. The technique, demonstrated using a unity-gain sample-and-hold amplifier (SHA) in IBM 32-nm silicon-on-insulator (SOI) process, gives 5.0-, 4.4-, and 3.7-dB improvements while operating at 100, 250, and 500 MHz, respectively, and consuming only 30% additional power as compared to 400% to get a similar improvement without noise cancelation.

Original language	English
Article number	7410019
Pages (from-to)	628-632
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	63
Issue number	7
DOIs	https://doi.org/10.1109/TCSII.2016.2530878
State	Published - Jul 2016

Keywords

Noise cancelation
op amp
sample-and-hold
switched capacitor (SC) circuits
thermal noise

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10.1109/TCSII.2016.2530878

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title = "Thermal-Noise-Canceling Switched-Capacitor Circuit",

abstract = "Thermal noise has been a fundamental bottleneck in building high dynamic range switched capacitor (SC) circuits. This brief proposes an SC thermal-noise-canceling circuit. The technique, demonstrated using a unity-gain sample-and-hold amplifier (SHA) in IBM 32-nm silicon-on-insulator (SOI) process, gives 5.0-, 4.4-, and 3.7-dB improvements while operating at 100, 250, and 500 MHz, respectively, and consuming only 30\% additional power as compared to 400\% to get a similar improvement without noise cancelation.",

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AB - Thermal noise has been a fundamental bottleneck in building high dynamic range switched capacitor (SC) circuits. This brief proposes an SC thermal-noise-canceling circuit. The technique, demonstrated using a unity-gain sample-and-hold amplifier (SHA) in IBM 32-nm silicon-on-insulator (SOI) process, gives 5.0-, 4.4-, and 3.7-dB improvements while operating at 100, 250, and 500 MHz, respectively, and consuming only 30% additional power as compared to 400% to get a similar improvement without noise cancelation.

KW - Noise cancelation

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KW - sample-and-hold

KW - switched capacitor (SC) circuits

KW - thermal noise

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ER -

Thermal-Noise-Canceling Switched-Capacitor Circuit

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Keywords

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