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An Ultra-low-power Fully-differential ASK Demodulator with 12.5 pJ/bit FOM for Implantable Biomedical Applications

Title
An Ultra-low-power Fully-differential ASK Demodulator with 12.5 pJ/bit FOM for Implantable Biomedical Applications
Authors
Baik, SeungyeobGeorge, Arup KocheethraLee, Junghyup
DGIST Authors
Lee, Junghyup
Issue Date
2018-10
Citation
Journal of Semiconductor Technology and Science, 18(5), 626-632
Type
Article
Article Type
Article
Keywords
Demodulatoramplitude-shift-keying (ASK)differentiallow-power
ISSN
1598-1657
Abstract
In this paper, we propose a fully-differential amplitude-shift-keying (ASK) demodulator for suppressing the effect of undesired common mode variations on the received data, In addition, the ASK demodulator is robust against power supply ripples. The proposed demodulator consists of a fully-differential envelope detector (ED), programmable gain amplifier (PGA) and a differential comparator. The ED and PGA operate in the sub-threshold region and the inverter based comparator consumes only dynamic current, making it highly power-efficient. The proposed system is implemented in a 0.18 mu m CMOS process and consumes 2.5 mu A from a 1 V power supply. At a data rate of 200 kbps, this leads to an FOM of 12.5 pJ/bit.
URI
http://hdl.handle.net/20.500.11750/9416
DOI
10.5573/JSTS.2018.18.5.626
Publisher
대한전자공학회
Related Researcher
  • Author Lee, Junghyup 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 Lab1. Journal Articles


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