A Pulsed Electrochemistry Readout IC for Single Transistor-based Biosensor

Siang Sin Shan, Shao Yung Lu, Shu Ping Lin, Minghan Xian, Fan Ren, Stephen Pearton, Chin Wei Chang, Jenshan Lin, Yu Te Liao

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

Abstract

This paper presents a portable readout interface IC for electrochemical sensing. The circuit conducts the chronoamperometry measurement by generating two stimulus pulses. A current-to-frequency converter senses the current change from the bio-sensing transistor built by two gold electrodes at the gate. The results are measured by using a time-to-digital converter. The readout circuit consumes 14\mu W at a 1.2V supply, and its function is verified under the potassium ferricyanide test. The limit of detection is 1nM in a concentration range of 1mM.

Original languageEnglish
Title of host publication2020 Asia-Pacific Microwave Conference, APMC 2020 - Proceeding
EditorsJie Sun, Wai Ho Yu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages489-490
Number of pages2
ISBN (Electronic)9781728169620
DOIs
StatePublished - 8 Dec 2020
Event2020 Asia-Pacific Microwave Conference, APMC 2020 - Virtual, Hong Kong, Hong Kong
Duration: 8 Dec 202011 Dec 2020

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
Volume2020-December

Conference

Conference2020 Asia-Pacific Microwave Conference, APMC 2020
Country/TerritoryHong Kong
CityVirtual, Hong Kong
Period8/12/2011/12/20

Keywords

  • Portable
  • pulsed electrochemical sensing

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