@inproceedings{9dacbe99346d4880b5efb529ffab3102,
title = "A Multi-Stage Zero-Crossing-Based Amplifier Using Floating-Inverter Amplifier With Background Offset Calibration and Self-Timed Loop",
abstract = "Zero-crossing-based amplifiers (ZCBAs) have been used in place of power-hungry operational amplifiers in many applications. We propose a novel five-stage ZCBA to break the trade-off between the slew rate and settling accuracy. Our proposed ZCBA uses a two-stage floating-inverter preamplifier and dynamic comparator with background offset calibration for high power efficiency. The amplifier is clocked by a self-timed loop to maximize the available time for amplification for improved gain. The scaled five-stage charge pump reduces the overshoot while offering a fast slew rate. Simulated in a 28-nm CMOS technology, the proposed ZCBA achieves a signal-to-noise ratio of 57 dB at a sampling rate of 40 MHz and consumes 1.45 mW under a 1-V supply.",
keywords = "charge pump, dynamic amplifier, floating-inverter amplifier, offset calibration, op amp, zero-crossing-based amplifier",
author = "Taylor Barton and Kuan, {Yen Cheng} and Chiang, {Shiuh Hua Wood}",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE 66th International Midwest Symposium on Circuits and Systems, MWSCAS 2023 ; Conference date: 06-08-2023 Through 09-08-2023",
year = "2023",
doi = "10.1109/MWSCAS57524.2023.10405916",
language = "English",
series = "Midwest Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "880--884",
booktitle = "2023 IEEE 66th International Midwest Symposium on Circuits and Systems, MWSCAS 2023",
address = "United States",
}