TY - GEN
T1 - A Two-Step Multi-Stage Noise-Shaping Incremental Analog-to-Digital Converter (Invited Paper)
AU - Huang, Jia Sheng
AU - Huang, Yu Cheng
AU - Kao, Chia Wei
AU - Hsu, Che Wei
AU - Chiang, Shiuh Hua Wood
AU - Chen, Chia Hung
N1 - Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/8
Y1 - 2020/8
N2 - High resolution wide bandwidth applications require power-efficient high-accuracy data converters. Multi-Stage Noise-Shaping (MASH) is a useful technique for the design of stable high-order ?S modulators. In this paper, we propose a two-step MASH incremental ADC (IADC). In the first step it performs a third-order coarse quantization. Re-using the same hardware, in the second step the circuit performs fine quantization as a second-order IADC. Thus, it achieves fifth-order noise shaping with only three amplifiers. For a low oversampling ratio OSR = 32, the signal-to-noise ratio can be boosted by about 30 dB. The scheme is suitable for wide bandwidth applications.
AB - High resolution wide bandwidth applications require power-efficient high-accuracy data converters. Multi-Stage Noise-Shaping (MASH) is a useful technique for the design of stable high-order ?S modulators. In this paper, we propose a two-step MASH incremental ADC (IADC). In the first step it performs a third-order coarse quantization. Re-using the same hardware, in the second step the circuit performs fine quantization as a second-order IADC. Thus, it achieves fifth-order noise shaping with only three amplifiers. For a low oversampling ratio OSR = 32, the signal-to-noise ratio can be boosted by about 30 dB. The scheme is suitable for wide bandwidth applications.
KW - analog-to-digital converter (ADC)
KW - delta sigma (?S)
KW - incremental data converters
KW - multi stage noise shaping (MASH)
KW - multi-step
KW - time-domain analysis
KW - two step
UR - http://www.scopus.com/inward/record.url?scp=85090549099&partnerID=8YFLogxK
U2 - 10.1109/MWSCAS48704.2020.9184542
DO - 10.1109/MWSCAS48704.2020.9184542
M3 - Conference contribution
AN - SCOPUS:85090549099
T3 - Midwest Symposium on Circuits and Systems
SP - 158
EP - 161
BT - 2020 IEEE 63rd International Midwest Symposium on Circuits and Systems, MWSCAS 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 63rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2020
Y2 - 9 August 2020 through 12 August 2020
ER -