Three-decade programmable fully differential linear OTA

Yunbin Deng, Shantanu Chakrabartty, Gert Cauwenberghs

Research output: Contribution to journalConference articlepeer-review

17 Scopus citations


Acoustic and sonar analog signal processing applications require design of operational transconductance amplifiers (OTAs) that can be configured over wide frequency range in multiple bands and yet achieve low power consumption and low harmonic distortion. A fully differential, linear OTA is presented with digitally programmable transconductance ranging over three decades of dynamic range. Measurements from a prototype fabricated in a 0.5μm CMOS process demonstrate a 0.4 nA/V to 0.8 μA/V transconductance range, 40 dB common-mode rejection ratio (CMRR), and -48 dB third-order harmonic distortion, at 12 μW power dissipation.

Original languageEnglish
Pages (from-to)I697-I700
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 2004
Event2004 IEEE International Symposium on Circuits and Systems - Proceedings - Vancouver, BC, Canada
Duration: May 23 2004May 26 2004


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