Please use this identifier to cite or link to this item:
Title: A 0.18-μm CMOS voltage-to-frequency converter with low circuit sensitivity
Authors: Koay, Kuan Chuang
Chan, Pak Kwong
Keywords: Switched-capacitor Circuit
Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Koay, K. C., & Chan, P. K. (2018). A 0.18-μm CMOS voltage-to-frequency converter with low circuit sensitivity. IEEE Sensors Journal, 18(15), 6245-6253. doi:10.1109/JSEN.2018.2846635
Series/Report no.: IEEE Sensors Journal
Abstract: A process, voltage, and temperature insensitive resistor-to-frequency converter is proposed. This insensitivity is achieved by matching the current-defining capacitor in a novel switched-capacitor (SC) voltage-to-current (V-I) converter with the integrating capacitor in a conventional relaxation oscillator. Implemented in 0.18-μm CMOS technology, the SC V-I converter together with the relaxation oscillator and voltage regulator occupies 0.45 mm 2 . This paper has shown a sensitivity of 199.9 Hz/(μQ/Q), which is based on a center frequency of 125 kHz. Testing with a commercial sensor, the sensor interface has demonstrated a sensitivity of 1.269 kHz/psi. The sensor interface consumes only 112.5 μW at 1.5-V power supply. Therefore, it is suitable for Internet-of-Things applications.
ISSN: 1530-437X
DOI: 10.1109/JSEN.2018.2846635
Rights: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

Files in This Item:
File Description SizeFormat 
A 0.18 μm CMOS Voltage-to-Frequency.pdf630.7 kBAdobe PDFThumbnail

Citations 20

Updated on Jul 16, 2020

Citations 20

Updated on Mar 6, 2021

Page view(s)

Updated on May 26, 2022

Download(s) 50

Updated on May 26, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.