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Rail-to-Rail Timer-Based Demodulator for AM Sensor Signals

Author
Reverter, F.
Type of activity
Journal article
Journal
IEEE transactions on instrumentation and measurement
Date of publication
2019-01-01
Volume
68
Number
1
First page
306
Last page
308
DOI
https://doi.org/10.1109/TIM.2018.2879127 Open in new window
Repository
http://hdl.handle.net/2117/128235 Open in new window
Abstract
This paper proposes a novel timer-based demodulator for low-frequency amplitude-modulated (AM) sensor signals with a rail-to-rail operating range. The demodulator extracts the amplitude of the AM signal by measuring the period of a reference signal that is altered by the AM signal itself, as already suggested in a previous paper. The rail-to-rail operation, which is the main contribution of the novel circuit, is achieved by simply but cleverly incorporating a multiplexer that enables the compari...
Citation
Reverter, F. Rail-to-Rail Timer-Based Demodulator for AM Sensor Signals. "IEEE transactions on instrumentation and measurement", 1 Gener 2019, vol. 68, núm. 1, p. 306-308.
Keywords
Amplitude-modulated (AM) signal, demodulator, digital timer, rail-to-rail circuit, sensor interface electronics.
Group of research
e-CAT - Electronic Circuits and Transducers

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