A 101-dB SFDR 98.5-dB DR 20-kHz BW Continuous Time Incremental Δ∑ ADC with FIR DAC and Robust Reset Timing for Sensor Interfaces

Cheng En Wei, Cheng Wei Wang, Chen Hao Hung, Chi Han Wang, Chuan Tai Chou, Duan Sin Hung, Guan Wei Lu, Chia Hung Chen

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

Incremental ΔΣ analog-to-digital converters are highly advantageous in sensor interface integrated circuits due to its ability to minimize latency and easily multiplex signals. This makes it a great choice for sensor interface applications. In this paper, a third-order continuous time incremental ADC is proposed, which incorporates circuit techniques such as chopping, FIR DAC and robust reset timing to achieve high resolution. The ADC is prototyped in 0.18 μm technology. This work can achieve a peak SNDR of 93.7dB, SFDR of 101dB with a 2.54 vpp input amplitude and a DR of 98.5dB, occupying an area of 0.197 mm2. This work consumes 342.8μW with 1.8V supply voltage and 20kHz bandwidth, resulting in a Schreier Figure of Merit (FoMs) of 176.1dB. It is highly suitable for sensor interface readout systems.

原文English
主出版物標題2024 International VLSI Symposium on Technology, Systems and Applications, VLSI TSA 2024 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350360349
DOIs
出版狀態Published - 2024
事件2024 International VLSI Symposium on Technology, Systems and Applications, VLSI TSA 2024 - Hsinchu, 台灣
持續時間: 22 4月 202425 4月 2024

出版系列

名字2024 International VLSI Symposium on Technology, Systems and Applications, VLSI TSA 2024 - Proceedings

Conference

Conference2024 International VLSI Symposium on Technology, Systems and Applications, VLSI TSA 2024
國家/地區台灣
城市Hsinchu
期間22/04/2425/04/24

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