Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published 2009 | Published
Book Section - Chapter Open

A Fully Differential CMOS Potentiostat

Abstract

A CMOS potentiostat for chemical sensing in a noisy environment is presented. The potentiostat measures bidirectional electrochemical redox currents proportional to the concentration of a chemical down to pico-ampere range. The fully differential architecture with differential recording electrodes suppresses the common mode interference. A 200μm×200μm prototype was fabricated in a standard 0.35μm standard CMOS technology and yields a 70dB dynamic range. The in-channel analog-to-digital converter (ADC) performs 16-bit current-tofrequency quantization. The integrated potentiostat functionality is validated in electrical and electrochemical experiments.

Additional Information

© 2009 IEEE.

Attached Files

Published - Nazari2009p10002Iscas_2009_Ieee_International_Symposium_On_Circuits_And_Systems_Vols_1-5.pdf

Files

Nazari2009p10002Iscas_2009_Ieee_International_Symposium_On_Circuits_And_Systems_Vols_1-5.pdf

Additional details

Created:
August 20, 2023
Modified:
October 20, 2023