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2019 | OriginalPaper | Chapter

Low Power SAR ADC Based on Charge Redistribution Using Double Tail Dynamic Comparator

Author : Sugandha Yadav

Published in: Recent Trends in Communication, Computing, and Electronics

Publisher: Springer Singapore

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Abstract

In this paper I have designed a low power SARADC based on charge redistribution. In the proposed design, I have designed a successive approximation register ADC using low power double tail dynamic comparator with control transistors (MC1 & MC2). The peculiar advantage of low power double tail dynamic comparator with control transistor (MC1 & MC2) is that the power consumption is reduced by three times as compared with the existing low power double tail dynamic comparator. The proposed comparator having the power consumption 58 µW can be operated at maximum frequency 16 MHz. Best efforts has been made to design an efficient SAR and control unit in the proposed design. In this 4-bit SAR ADC which can be operated at clock frequency of 16.5 MHz and having sampling frequency of 3.3 MHz is designed. The power consumption of the proposed circuit is 113 µW. In the paper quantization noise, SNR, SNDR and ENOBs are also obtained which are better in performances than existing ADCs.

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Metadata
Title
Low Power SAR ADC Based on Charge Redistribution Using Double Tail Dynamic Comparator
Author
Sugandha Yadav
Copyright Year
2019
Publisher
Springer Singapore
Book
Recent Trends in Communication, Computing, and Electronics

Print ISBN: 978-981-13-2684-4

Electronic ISBN: 978-981-13-2685-1

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-981-13-2685-1_53