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A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications

Title
A 1 v 2.5 μw fully-differential ASK demodulator with 12.5 pJ/bit FOM for ultra-low power biomedical applications
Authors
Baik, Seung YeobGeorge, Arup KocheethraJe, Min KyuLee, Jung Hyup
DGIST Authors
Lee, Jung Hyup
Issue Date
2017-08-06
Citation
60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017, 313-316
Type
Conference
ISBN
9781509063895
ISSN
1548-3746
Abstract
Wireless transceivers that receive data and power are important circuit blocks in implantable biomedical devices. In such wirelessly powered devices, supply and common-mode variations increase the error rate of the received data. In this paper we propose a fully-differential amplitude-shift-keying (ASK) demodulator for suppressing the effect of such undesired common mode variations on the received data. The proposed demodulator consists of a fully-differential envelope detector (ED) and programmable gain amplifier (PGA) that operates in the sub-threshold region, and a differential comparator that consumes only dynamic current. The proposed system is implemented in a 0.18 μm CMOS process and consumes 2.5 μα from a 1 V power supply. At a data rate of 200 kbps, this leads to an FOM of 12.5 pJ/bit. © 2017 IEEE.
URI
http://hdl.handle.net/20.500.11750/5783
DOI
10.1109/MWSCAS.2017.8052923
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Lee, Jung Hyup Integrated Nano-Systems Lab
  • Research Interests Analog and Mixed Signal IC Design; Smart Sensor Systems; Bio-medical ICs and Body Channel Communication Systems
Files:
There are no files associated with this item.
Collection:
Department of Information and Communication EngineeringIntegrated Nano-Systems Lab2. Conference Papers


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