A low power switched-capacitor interface for resistive bridge sensors

A low-power low-offset switched-capacitor interface for resistive bridge sensor designed in UMC 65nm technology is presented. It converts the resistance imbalance of the bridge sensor into a saw tooth frequency using current-mode sensing. The half-bridge sensor interface and quarter-bridge sensor in...

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Bibliographic Details
Main Author: Li, Yue
Other Authors: Chan Pak Kwong
Format: Final Year Project (FYP)
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/67822
Description
Summary:A low-power low-offset switched-capacitor interface for resistive bridge sensor designed in UMC 65nm technology is presented. It converts the resistance imbalance of the bridge sensor into a saw tooth frequency using current-mode sensing. The half-bridge sensor interface and quarter-bridge sensor interface are configured to validate the circuit. The sensor interface consumes 337 μW at a 1.2 V single supply and display excellent energy-noise FOM. This is considered as a low-voltage low-energy design with respect to other reported counterparts.