@inproceedings{4c70c4dc0e5c48d688ca0540c3f81379,
title = "A 2nd-order continuous time delta-sigma modulator for photoplethysmography analog front-end",
abstract = "A brief presents a 2nd order continuous-time delta-sigma modulator (CT-DSM) using a low pass filter to reduce the slew rate requirement of the output swing of the first integrator. By adding the low pass filter, the desired transfer function of the CT-DSM is altered. Thus a feed-forward based compensation circuit is introduced to transform the altered transfer function to the original condition. The CT-DSM is designed with a bandwidth of 100 Hz to satisfy the requirement of photoplethysmogram (PPG) detection. The CT-DSM is simulated using CMOS 180 nm technology with the layout area 460 µm x 460 µm. The circuit uses a 1.8 V supply voltage and consumes 35.61 µW. The signal-to-noise ratio of the CT-DSM is 101.2 dB, while the SFDR is 99.1 dB.",
keywords = "Compensation circuit, CT-DSM, Low-pass filter, PPG signal",
author = "Pribadi, {Eka Fitrah} and Pandey, {Rajeev Kumar} and Chao, {Paul C.-P.}",
year = "2020",
month = jun,
doi = "10.1115/ISPS2020-1904",
language = "English",
series = "ASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020",
publisher = "American Society of Mechanical Engineers (ASME)",
booktitle = "ASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020",
address = "美國",
note = "ASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020 ; Conference date: 24-06-2020 Through 25-06-2020",
}