A 75-µW 2.4 GHz wake-up receiver in 65-nm CMOS for neonatal healthcare application

Kumar, K and Raghunath, KP and Muraleedharan, A and Gaggatur, JS and Banerjee, G (2019) A 75-µW 2.4 GHz wake-up receiver in 65-nm CMOS for neonatal healthcare application. In: 32nd International Conference on VLSI Design, VLSID 2019, 5 January 2019 - 9 January 2019, New Delhi, pp. 287-292.

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Abstract

A 2.4 GHz low power, Internet-of-Things (IoT) based system for neonatal health-care application is presented. The system includes an ultra-low power receiver compatible with a wearable device with interface-connectivity to the sensors and a controller. A novel design of a”wake-up” receiver architecture is presented, where an LC oscillator and a ring oscillator combination provides a desired ultra-low power solution. The proposed receiver front-end consists of a gm-boosting current-reuse based low noise amplifier (LNA) and a transmission-gate based passive switching mixer. The prototype is designed in a 65-nm CMOS technology. The simulation results show a gain of 14.9 dB while consuming 75µW from a 0.75 V supply. The LNA gain is 16 dB with a noise figure of 5.7 dB and IIP3 of 18.16 dBm.

Item Type:	Conference Paper
Publication:	Proceedings - 32nd International Conference on VLSI Design, VLSID 2019 - Held concurrently with 18th International Conference on Embedded Systems, ES 2019
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	CMOS integrated circuits; Embedded systems; Health care; Internet of things; Mixer circuits; Noise figure; VLSI circuits; Wakes, Health care application; Internet of Things (IOT); Receiver architecture; Receiver front-ends; Switching mixers; Transmission gate; Wake-up receiver; Wearable devices, Low noise amplifiers
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology) Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	27 Dec 2022 05:29
Last Modified:	27 Dec 2022 05:29
URI:	https://eprints.iisc.ac.in/id/eprint/78577

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