This work proposes an energy efficient wearable CMOS biomedical signal acquisition and digitization scheme powered by RF energy harvesting circuit. The system consists of a ultra-low power analog front end (AFE) incorporating low noise instrumentation amplifier (IA)(CMRR=75dB), two programmable gain amplifiers (PGA), mixed signal automatic gain control (AGC) and a successive approximation register (SAR) analog to digital converter (ADC)(10-bit). The full system is powered by a power aware RF energy harvesting circuit for an input range of -26dBm to -8dBm. The AFE along with ADC consumes 343nA with 1V supply voltage in UMC 0.18μm CMOS technology. © 2016 IEEE.

Ashudeb Dutta

Department of Electrical Engineering

P. Patra

K. Yadav

N. Vamsi

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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Journal	Data powered by TypesetProceedings - IEEE International Symposium on Circuits and Systems
Publisher	Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN	02714310