A 0.5V 1KS/s 2.5nW 8.52-ENOB 6.8fJ/conversion-step SAR ADC for biomedical applications

Tsung Che Lu*, Lan-Da Van, Chi Sheng Lin, Chun Ming Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Scopus citations

Abstract

A low-FOM SAR ADC using the leakage reduction bootstrapped switch (LRBS) to achieve a satisfactory ENOB and using a low-power approach with a low voltage, low sampling rate, and low-DAC-capacitance structure is presented for biomedical applications. LRBS is proposed to alleviate the leakage caused by the low-power approach to increase SNDR and ENOB. From the measurement results, the 0.18μm CMOS prototype chip with the total DAC capacitance of 2.765pF consumes 2.5nW and achieves a SNDR of 53.05dB under a 0.5V supply voltage at 1KS/s with a Nyquist input. The resulting FOM is 6.8fJ/conversion-step.

Original languageEnglish
Title of host publication2011 IEEE Custom Integrated Circuits Conference, CICC 2011
DOIs
StatePublished - 9 Nov 2011
Event33rd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2011 - San Jose, CA, United States
Duration: 19 Sep 201121 Sep 2011

Publication series

NameProceedings of the Custom Integrated Circuits Conference
ISSN (Print)0886-5930

Conference

Conference33rd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2011
CountryUnited States
CitySan Jose, CA
Period19/09/1121/09/11

Fingerprint Dive into the research topics of 'A 0.5V 1KS/s 2.5nW 8.52-ENOB 6.8fJ/conversion-step SAR ADC for biomedical applications'. Together they form a unique fingerprint.

Cite this