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Techniques of Reducing Switching Artifacts in Chopper Amplifiers
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Summary :
Chopping technique up-modulates amplifier's offset and low-frequency noise up to its switching frequency, and therefore can achieve low offset and low temperature drift. On the other hand, it generates unwanted AC and DC errors due to its switching artifacts such as up-modulated ripple and glitches. This paper summarizes various circuit techniques of reducing such switching artifacts, and then discusses the advantages and disadvantages of each technique. The comparison shows that newer designs with advanced circuit techniques can achieve lower DC and AC errors with higher chopping frequency.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E103-C No.10 pp.458-465
- Publication Date
- 2020/10/01
- Publicized
- 2020/04/09
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2019CTI0001
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Analog Circuits and Their Application Technologies)
- Category
- Electronic Circuits
Authors
Yoshinori KUSUDA
Analog Devices, Inc.
Keyword
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Yoshinori KUSUDA, "Techniques of Reducing Switching Artifacts in Chopper Amplifiers" in IEICE TRANSACTIONS on Electronics,
vol. E103-C, no. 10, pp. 458-465, October 2020, doi: 10.1587/transele.2019CTI0001.
Abstract: Chopping technique up-modulates amplifier's offset and low-frequency noise up to its switching frequency, and therefore can achieve low offset and low temperature drift. On the other hand, it generates unwanted AC and DC errors due to its switching artifacts such as up-modulated ripple and glitches. This paper summarizes various circuit techniques of reducing such switching artifacts, and then discusses the advantages and disadvantages of each technique. The comparison shows that newer designs with advanced circuit techniques can achieve lower DC and AC errors with higher chopping frequency.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2019CTI0001/_p
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@ARTICLE{e103-c_10_458,
author={Yoshinori KUSUDA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Techniques of Reducing Switching Artifacts in Chopper Amplifiers},
year={2020},
volume={E103-C},
number={10},
pages={458-465},
abstract={Chopping technique up-modulates amplifier's offset and low-frequency noise up to its switching frequency, and therefore can achieve low offset and low temperature drift. On the other hand, it generates unwanted AC and DC errors due to its switching artifacts such as up-modulated ripple and glitches. This paper summarizes various circuit techniques of reducing such switching artifacts, and then discusses the advantages and disadvantages of each technique. The comparison shows that newer designs with advanced circuit techniques can achieve lower DC and AC errors with higher chopping frequency.},
keywords={},
doi={10.1587/transele.2019CTI0001},
ISSN={1745-1353},
month={October},}
Copy
TY - JOUR
TI - Techniques of Reducing Switching Artifacts in Chopper Amplifiers
T2 - IEICE TRANSACTIONS on Electronics
SP - 458
EP - 465
AU - Yoshinori KUSUDA
PY - 2020
DO - 10.1587/transele.2019CTI0001
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E103-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2020
AB - Chopping technique up-modulates amplifier's offset and low-frequency noise up to its switching frequency, and therefore can achieve low offset and low temperature drift. On the other hand, it generates unwanted AC and DC errors due to its switching artifacts such as up-modulated ripple and glitches. This paper summarizes various circuit techniques of reducing such switching artifacts, and then discusses the advantages and disadvantages of each technique. The comparison shows that newer designs with advanced circuit techniques can achieve lower DC and AC errors with higher chopping frequency.
ER -
English
