A 1 V 92 dB SNDR 10 kHz Bandwidth Second-Order Asynchronous Delta-Sigma Modulator for Biomedical Signal Processing
Department of Microelectronics, Brno University of Technology (BUT), Technická 3058/10, 61600 Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(15), 4137; https://doi.org/10.3390/s20154137
Received: 30 June 2020 / Revised: 20 July 2020 / Accepted: 23 July 2020 / Published: 25 July 2020
(This article belongs to the Special Issue Integrated Analog Circuits, Systems, and Sensors, and Their Applications)
In this paper, a second-order asynchronous delta-sigma modulator (ADSM) is proposed based on the active-RCintegrators. The ADSM is implemented in the 0.18 m CMOS Logic or Mixed-Signal/RF, General Purpose process from the Taiwan Semiconductor Manufacturing Company with a center frequency of 848 kHz at a supply voltage of 1 V with a 92 dB peak signal-to-noise and distortion ratio ( ), which corresponds to 15 bit resolution. These parameters were achieved in all the endogenous bioelectric signals bandwidth of 10 kHz. The ADSM dissipated 295 W and had an area of 0.54 mm . The proposed ADSM with a high resolution, wide bandwidth, and rail-to-rail input voltage range provides the universal solution for endogenous bioelectric signal processing.
View Full-Text
Keywords:
asynchronous delta-sigma modulator (ADSM); center frequency; operational amplifier; biomedical signals; biosensors
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Kledrowetz, V.; Fujcik, L.; Prokop, R.; Háze, J. A 1 V 92 dB SNDR 10 kHz Bandwidth Second-Order Asynchronous Delta-Sigma Modulator for Biomedical Signal Processing. Sensors 2020, 20, 4137. https://doi.org/10.3390/s20154137
AMA Style
Kledrowetz V, Fujcik L, Prokop R, Háze J. A 1 V 92 dB SNDR 10 kHz Bandwidth Second-Order Asynchronous Delta-Sigma Modulator for Biomedical Signal Processing. Sensors. 2020; 20(15):4137. https://doi.org/10.3390/s20154137
Chicago/Turabian StyleKledrowetz, Vilém; Fujcik, Lukáš; Prokop, Roman; Háze, Jiří. 2020. "A 1 V 92 dB SNDR 10 kHz Bandwidth Second-Order Asynchronous Delta-Sigma Modulator for Biomedical Signal Processing" Sensors 20, no. 15: 4137. https://doi.org/10.3390/s20154137
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
Search more from Scilit
