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conference paper
Sample and Average Common-Mode Feedback in a 101 nW Acoustic Amplifier
2020
2020 IEEE Symposium on VLSI Circuits proceedings
We present a Sample and Average Feedback Resistor (SAFR) for accurate and programmable common-mode feedback in capacitively coupled low-power amplifiers. Using only switches, clocks, and capacitors, we reduce the variation across process and temperature by 4.4× and 226x, respectively, compared to a traditional pseudo-resistor implementation. The SAFR was implemented in a low-power audio LNA + PGA + ADC chain, achieving a resistance of 100 TΩ and HP corner programmability from 16 mHz to 4 Hz.
Type
conference paper
Authors
Rothe, Rohit
•
Oh, Sechang
•
•
Jeong, Seokhyeon
•
Cho, Minchang
•
Sylvester, Dennis
•
Blaauw, David
Publication date
2020
Publisher
Published in
2020 IEEE Symposium on VLSI Circuits proceedings
Start page
1
End page
2
Peer reviewed
REVIEWED
EPFL units
Event name | Event place | Event date |
Honolulu, HI, USA | 16-19 June 2020 | |
Available on Infoscience
April 1, 2022
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