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Low-power pressure sensor front-end for implantable passive RFID tags

  • Beijing Institute of Technology

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

Abstract

In this paper, a pressure sensor interface circuit for implantable passive high frequency radio frequency identification (RFID) tag is designed. On one hand, in order to meet the requirements of small input swing and low power consumption, an internal programmable amplifier is designed to fix the floating common-mode voltage of the external pressure sensor and process the tiny pressure fluctuation signal generated by human body. On the other hand, in order to solve the problem that traditional passive RFID sensors sacrifice sampling accuracy for low power consumption, a two-order discrete sigma-delta analog-to-digital converter (ADC) is proposed in this paper. Using UMC180nm process and 1.8V power supply voltage, the sampling accuracy reaches 15.68bit. The total power consumption is only 71.6uW with an area of only 0.0768mm2.

Original languageEnglish
Title of host publication2023 IEEE 6th International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages445-450
Number of pages6
ISBN (Electronic)9798350305623
DOIs
Publication statusPublished - 2023
Event6th IEEE International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2023 - Shenyang, China
Duration: 15 Dec 202317 Dec 2023

Publication series

Name2023 IEEE 6th International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2023

Conference

Conference6th IEEE International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2023
Country/TerritoryChina
CityShenyang
Period15/12/2317/12/23

Keywords

  • Low power consumption
  • RFID
  • high accuracy
  • sensor front end
  • Σ-Δ modulator

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