A 32-channel front-end for wireless HID using inverse-STF pre-filtering technique

A 32-channel front-end circuit for wireless Human Interface Devices (HID) is described. The front-end incorporates a Sigma-Delta ADC combined with an inverse-STF pre-filtering technique to achieve 10.8 ENOB at a conversion rate of 7.5μs per channel. Chopping and digital calibration are employed to a...

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Bibliographic Details
Main Authors: Galal, S, van Engelen, J, Welz, J, Jensen, H, Abdelfattah, K, Cheung, F, Arunachalam, S K, Xicheng Jiang, Brooks, T
Format: Conference Proceeding
Language:English
Subjects:
Calibration
Capacitors
Digital filters
Matched filters
Noise
Switches
Voltage measurement
Online Access:Request full text
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Description
Summary:A 32-channel front-end circuit for wireless Human Interface Devices (HID) is described. The front-end incorporates a Sigma-Delta ADC combined with an inverse-STF pre-filtering technique to achieve 10.8 ENOB at a conversion rate of 7.5μs per channel. Chopping and digital calibration are employed to achieve an offset voltage
ISSN:0886-5930
2152-3630
DOI:10.1109/CICC.2010.5617595