A CMOS current-voltage feedback transconductor with an 80-dB SFDR up to 100MHz

Ying Zu Lin, Soon-Jyh Chang

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper proposes a trans conductor using current-voltage feedback to achieve high linearity. We construct feedforward voltage-to-cur rent amplifier by using a simple fully differential OTA and form feedback network by using a pair of resistors which perform current sampling and voltage mixing at the inputs. The circuit is realized in TSMC 0.18-μm 1P6M CMOS process with a 1.8V supply voltage. The transconductor achieves an 80-dB spurious free dynamic range (SFDR) for a 2V differential input swing up to 100MHz and a 60-dB SFDR even up to IGHz. The DC power consumption of the transconductor core is 2.58mW.

Original languageEnglish
Pages945-948
Number of pages4
Publication statusPublished - 2004 Dec 1
Event2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan
Duration: 2004 Dec 62004 Dec 9

Other

Other2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology
Country/TerritoryTaiwan
CityTainan
Period04-12-0604-12-09

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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