A high performance current-mode instrumentation amplifier with level shifter for single power biomedical applications

  • Hwang Cherng Chow*
  • , Bing Shiun Tang
  • *Corresponding author for this work

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

Abstract

In this paper, a high performance current-mode instrumentation amplifier has been proposed with low noise, low power and high CMRR features. The proposed design can adjust the gain with an external resistor for the processing of various biomedical signals. To reduce the noise of the amplifier, two design methods including PMOS input and lateral pnp BJT input have been implemented to improve the prior arts. To meet the single power supply need, a biomedical voltage level shifter is also proposed for low cost CMOS implementation. Based on the post-layout simulation results, the presented current-mode amplifier achieves high CMRR over 120 dB, power consumption of 61 uW at 1.8-V supply using standard 0.18-um CMOS technology.

Original languageEnglish
Title of host publicationAdvances in Measurements and Information Technologies
PublisherTrans Tech Publications
Pages217-220
Number of pages4
ISBN (Print)9783038350392
DOIs
StatePublished - 2014
Event2014 International Conference on Sensors Instrument and Information Technology, ICSIIT 2014 - Guangzhou, China
Duration: 18 01 201419 01 2014

Publication series

NameApplied Mechanics and Materials
Volume530-531
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2014 International Conference on Sensors Instrument and Information Technology, ICSIIT 2014
Country/TerritoryChina
CityGuangzhou
Period18/01/1419/01/14

Keywords

  • Biomedical application
  • Current-mode
  • Instrumentation amplifier
  • Level shifter

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