Next Article in Journal
Vibration Characterization of the Human Knee Joint in Audible Frequencies
Next Article in Special Issue
The CMOS Highly Linear Current Amplifier with Current Controlled Gain for Sensor Measurement Applications
Previous Article in Journal
A Blind Signal Samples Detection Algorithm for Accurate Primary User Traffic Estimation
Previous Article in Special Issue
Current/Voltage Controlled Quadrature Sinusoidal Oscillators for Phase Sensitive Detection Using Commercially Available IC
Open AccessLetter

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
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 μ 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 ( S N D R ), which corresponds to 15 bit resolution. These parameters were achieved in all the endogenous bioelectric signals bandwidth of 10 kHz. The ADSM dissipated 295 μ W and had an area of 0.54 mm 2 . 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 asynchronous delta-sigma modulator (ADSM); center frequency; operational amplifier; biomedical signals; biosensors
Show Figures

Figure 1

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.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop