Composite Resistor Technique for Process and Temperature Compensations of Low Power Ring Oscillators

Hakan Cetinkaya*, Ali Zeki, Alper Girgin, Tufan Coskun Karalar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

A process and temperature compensation technique, namely, composite resistor, is adopted for the current controlled oscillators (CCOs). The core is a ring oscillator (RO) and oscillates at 1 MHz at room temperature (25°C) with 50% duty cycle. The temperature compensation is achieved between-20°C and 100°C, and after trimming, the inaccuracies of the output frequencies, 1 MHz, and 0.5 MHz, are below ±1% (3σ) in the same temperature range. As a result, 2 outputs are temperature compensated. The oscillator core consumes 750 nA, the biasing circuit consumes 360 nA, and the complete system consumes 1.256 μA, corresponding to 2 μW at 1.6 V battery voltage. The design, occupying 130 μm × 285 μm die area, is realized in a 0.18 μm Mixed-Signal RF Salicide (1P6M, 1.8V/3.3V) CMOS process.

Original languageEnglish
Title of host publication2019 IEEE 10th Latin American Symposium on Circuits and Systems, LASCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages29-32
Number of pages4
ISBN (Electronic)9781728104522
DOIs
Publication statusPublished - 14 Mar 2019
Event10th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2019 - Armenia, Colombia
Duration: 24 Feb 201927 Feb 2019

Publication series

Name2019 IEEE 10th Latin American Symposium on Circuits and Systems, LASCAS 2019 - Proceedings

Conference

Conference10th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2019
Country/TerritoryColombia
CityArmenia
Period24/02/1927/02/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Funding

ACKNOWLEDGMENT This work is supported by Mikroelektronik Geliştirme Tasarım ve Ticaret Ltd (MKR-IC). This work is supported by Mikroelektronik Araştırma Geliştirme Tasarım ve Ticaret Ltd (MKR-IC). 978-1-7281-0453-9/19/$31.00 ©2019 IEEE

FundersFunder number
Mikroelektronik Araştırma Geliştirme Tasarım ve Ticaret Ltd
Mikroelektronik Geliştirme Tasarım ve Ticaret Ltd

    Keywords

    • Composite resistor
    • current controlled oscillator
    • dynamic element matching (DEM)
    • low voltage current biasing
    • ring oscillator
    • room temperature trim

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