A micropower biomedical signal processor for mobile healthcare applications

Shu Yu Hsu, Yao Lin Chen, Po Yao Chang, Jui Yuan Yu, Ten Fang Yang, Ray Jade Chen, Chen Yi Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)


This work presents a biomedical signal processor (BSP) with hybrid functional cores to optimize the power dissipation and system flexibility for mobile healthcare applications. Embedded with the biomedical core and a 32-bit RISC core, multi-features are extracted for classification and the abnormal data are compressed. In addition, the crypto core secures both the data and wireless link protocols to protect the user privacy. This BSP chip is fabricated in a 90nm standard CMOS technology with core area of 1.17mm 2. To overcome the leakage in advanced technology, a duty-cycled clock generator minimizes the system active duty and the inactive functions are power gated. Operating at 25MHz frequency and 0.5V supply voltage, the energy of RISC core is down to 3.44pJ/cycle. Accompanied with dedicated biomedical and crypto cores, the average BSP power achieves 38μW at 25MHz and 0.5/1.0V when performing the ECG alarm application.

Original languageEnglish
Title of host publication2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011
Number of pages4
Publication statusPublished - 2011
Event7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 - Jeju, Korea, Republic of
Duration: Nov 14 2011Nov 16 2011


Other7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
Country/TerritoryKorea, Republic of

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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