Signal to noise ratio

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An IEEE 802.15.4/4z Coherent Quadrature Hybrid Correlation UWB Receiver in 65-nm CMOS
An IEEE 802.15.4/4z Coherent Quadrature Hybrid Correlation UWB Receiver in 65-nm CMOS 150 150
Author(s): Yunzhao Nie, Woogeun Rhee, Zhihua Wang

Abstract:

This article presents a coherent ultra-wideband (UWB) receiver architecture based on a quadrature hybrid correlation (QHC) method that significantly reduces the digital-correlation-relevant power in the conventional standard-compliant UWB receiver. The proposed QHC receiver front end employs analog correlation, two-step synchronization with a digital-assisted path, and time-interleaved (TI) sampling methods for …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3368281
Publisher: IEEE

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A Wideband Low-Noise Linear LiDAR Analog Front-End Achieving 1.6-GHz Bandwidth, 2.7-pA/Hz0.5 Input-Referred Noise, and 103-dBΩ Transimpedance Gain
A Wideband Low-Noise Linear LiDAR Analog Front-End Achieving 1.6-GHz Bandwidth, 2.7-pA/Hz0.5 Input-Referred Noise, and 103-dBΩ Transimpedance Gain 150 150
Author(s): Zhao Zhang, Yidan Zhang, Yiqing Xu, Xinyu Shen, Guike Li, Nan Qi, Jian Liu, Nanjian Wu, Liyuan Liu

Abstract:

This letter presents a low-noise wideband analog front-end (AFE) circuit for long-range linear LiDAR. The nMOS feedforward transimpedance amplifier with inner feedback resistor (NFFR-TIA) is proposed to extend the bandwidth to around 400 MHz and reduce the input referred noise (IRN) concurrently with high-transimpedance gain and improved stability. Two stage continuous-time …

Published in: IEEE Solid-State Circuits Letters
Page(s): 131 – 134
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3378093
Publisher: IEEE

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