A Time-based Low Voltage Body Temperature Monitoring Unit

Jeyashankar, Karthik Ramkumar and Mahalley, Makrand and Amrutur, Bharadwaj (2014) A Time-based Low Voltage Body Temperature Monitoring Unit. In: 27th International Conference on VLSI Design / 13th International Conference on Embedded Systems (VLSID), JAN 05-09, 2014, Mumbai, INDIA, pp. 522-527.

PDF 27th_int_con_VLS_des_13th_int_con_emb_sys_522_2014.pdf - Published Version Restricted to Registered users only Download (374kB) | Request a copy

Abstract

A neonatal temperature monitoring system operating in subthreshold regime that utilizes time mode signal processing is presented. Resistance deviations in a thermistor due to temperature variations are converted to delay variations that are subsequently quantized by a Delay measurement unit (DMU). The DMU does away with the need for any analog circuitry and is synthesizable entirely from digital logic. An FPGA implementation of the system demonstrates the viability of employing time mode signal processing, and measured results show that temperature resolution better than 0.1 degrees C can be achieved using this approach.

Item Type:	Conference Proceedings
Series.:	International Conference on VLSI Design
Publisher:	IEEE
Additional Information:	27th International Conference on VLSI Design / 13th International Conference on Embedded Systems (VLSID), Mumbai, INDIA, JAN 05-09, 2014
Keywords:	subthreshold design; time to digital converter; temperature measurement; sub-sampling; FPGA
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	21 Apr 2015 07:37
Last Modified:	21 Apr 2015 07:37
URI:	http://eprints.iisc.ac.in/id/eprint/51337

Actions (login required)

View Item