A temperature-compensated differential VFC in 1.8 V-0.18 μm CMOS

M. R. Valero, S. Celma, B. Calvo, N. Medrano

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a new CMOS differential voltage-to-frequency converter (VFC) which targets front-end sensor interfacing in wireless sensor network applications. The proposed VFC, designed in a low-cost 0.18μm CMOS technology supplied at 1.8V, shows 0-1MHz output frequency for 01.2V differential input operation with nonlinearity error less than 0.4% and power consumption less than 0.4 mW. A temperature compensation technique keeps the error below 5.3% over all the frequency range for a (-20°C, +120°C) span.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalProcedia Engineering
Volume5
DOIs
Publication statusPublished - 1 Jan 2010

Keywords

  • Low-voltage low-power CMOS design
  • Quasi-digital sensors
  • Smart sensors
  • Voltage-to-frequency converter
  • WSN

ASJC Scopus subject areas

  • Engineering(all)

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