OTA Linearity Enhancement Technique for High Frequency Applications With IM3 Below -65 dB Academic Article

abstract

• A technique to enhance the linearity of continuous-time operational transconductance amplifiers (OTA)-C filters working at high frequencies is proposed. Each OTA consumes 10.5 mW and the transconductance can be tuned from 70 to 160 A/V while the IM3 remains below 70 dB up to 50 MHz for a 1.3-Vpp differential input. For a 20-MHz low-pass second-order filter implementation, the measured IM3 with an input voltage of 1.3 Vpp is below 65 dB. The supply voltage is 3.3 V. Experimental results of the circuit, fabricated in a standard CMOS 0.35-m technology, are presented. 2004, The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.

authors

• Silva-Martinez, Jose

published proceedings

• IEEE Transactions on Circuits & Systems II Express Briefs

altmetric score

• 6

author list (cited authors)

• Lewinski, A., & Silva-Martinez, J.

citation count

• 76

complete list of authors

• Lewinski, Artur||Silva-Martinez, Jose

publication date

• October 2004

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Circuits and Systems - II - Express Briefs  Journal

Digital Object Identifier (DOI)

• 10.1109/tcsii.2004.834531

start page

• 542

end page

• 548

volume

• 51

issue

• 10

URL

• http://dx.doi.org/10.1109/tcsii.2004.834531