Title
A 80dB DR 6MHz Bandwidth Pipelined Noise-Shaping SAR ADC with 1–2 MASH structure
Abstract
A pipelined NS-SAR ADC with 1-2 MASH structure is presented. Two-stage pipelined structure consisting of 5-bit NS-SAR and 4-bit NS-SAR ADCs shows 3 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rd</sup> -order noise-shaping. To maximize power efficiency, a single operational transconductance amplifier (OTA) is reused for both an integrator for noise shaping and a residue amplifier for pipelining. The measured DR is 80dB when the sampling rate is 83.3MS/s and bandwidth is 6MHz, and power consumption is 3.5mW showing FoM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s,DR</sub> of 172.3dB. The proposed ADC structure greatly relaxes design requirement of each SAR quantizer, and can achieve high resolution and wide bandwidth with good power efficiency.
Year
DOI
Venue
2020
10.1109/CICC48029.2020.9075929
2020 IEEE Custom Integrated Circuits Conference (CICC)
Keywords
DocType
ISSN
Noise-shaping SAR ADC,pipelined SAR ADC,ΔΣ ADC,multi-stage noise-shaping (MASH)
Conference
0886-5930
ISBN
Citations 
PageRank 
978-1-7281-6032-0
0
0.34
References 
Authors
5
7
Name
Order
Citations
PageRank
Sein Oh100.34
Younggyun Oh200.34
Ju-young Lee38814.60
Kihyun Kim4459.27
Seungjun Lee5216.20
Jintae Kim600.34
Hyungil Chae700.34