Low frequency CMOS two-integrator oscillator for IoT applications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work a quasi-linear quadrature two-integrator RC oscillator is used for impedance meter. This topology has the advantage of having low distortion at low frequencies and it allows to tune the frequency of oscillation in a wide range of frequencies, while providing two differential quadrature outputs. In order to have the smallest possible area the capacitors are implemented with two parallel MOS transistors. It is intended that the transistors have low transconductance, thus, low current, and consequently the circuit will have the lowest possible power consumption, which is required for IoT (Internet of Things) applications. A circuit design is done in a 130 nm standard CMOS technology. The circuit power consumption is 3.18 μW, and a THD of -49 dB is obtained for a frequency of 20 kHz.

Original languageEnglish
Title of host publicationProceedings of the 24th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages281-284
Number of pages4
ISBN (Electronic)9788363578114
DOIs
Publication statusPublished - 8 Aug 2017
Event24th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2017 - Bydgoszcz, Poland
Duration: 22 Jun 201724 Jun 2017

Conference

Conference24th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2017
CountryPoland
CityBydgoszcz
Period22/06/1724/06/17

Keywords

  • impedance measurement techniques
  • Impedance Spectroscopy
  • linear oscillator
  • MOSFET-only
  • Quadrature oscillators
  • Two-Integrator

Fingerprint Dive into the research topics of 'Low frequency CMOS two-integrator oscillator for IoT applications'. Together they form a unique fingerprint.

Cite this