An Ultra-Low Power Level-Crossing ADC for ECG Monitoring Application

In this paper, a novel structure is proposed for implementing a fixed-window level-crossing analog-to-digital converter (LC-ADC) in which the activity and so the power consumption of the converter are considerably reduced. A pseudo synchronous implementation of this structure is proposed and designe...

Full description

Saved in:
Bibliographic Details
Main Authors: Ghasemi, Mahdi, Ravanshad, Nassim, Rezaee-Dehsorkh, Hamidreza
Format: Conference Proceeding
Language:English
Subjects:
Analog-digital conversion
analog-to-digital converter
ECG monitoring
Electrocardiography
fixed-window
Level-crossing
Low-power electronics
Monitoring
Periodic structures
Power demand
Quantization (signal)
ultra-low power
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a novel structure is proposed for implementing a fixed-window level-crossing analog-to-digital converter (LC-ADC) in which the activity and so the power consumption of the converter are considerably reduced. A pseudo synchronous implementation of this structure is proposed and designed for ECG monitoring application. Utilizing a single comparator and reducing the number of reference voltages are the other advantages of the proposed structure. Simulation results show an ultra-low power of 2.9 nW in .18\ \mu\mathrm{m} CMOS process using a 1.8 V supply voltage which makes it suitable for implantable biopotential-acquisition application.
ISSN:2642-9527
DOI:10.1109/ICEE50131.2020.9260733