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A Ten-Level Series-Capacitor 24-to-1-V DC–DC Converter With Fast In Situ Efficiency Tracking, Power-FET Code Roaming, and Switch Node Power Rail
A Ten-Level Series-Capacitor 24-to-1-V DC–DC Converter With Fast In Situ Efficiency Tracking, Power-FET Code Roaming, and Switch Node Power Rail 150 150
Author(s): Zhaoqing Wang, Mao Li, Suhwan Kim, Nachiket Desai, Ram K. Krishnamurthy, Xin Zhang, Mingoo Seok

Abstract:

This work presents a high-efficiency ten-level series-capacitor 24-to-1-V buck converter with three techniques to improve its efficiency and reliability. First, we propose a fast in situ efficiency tracking (FIT) technique to maximize efficiency across load conditions and process, voltage, and temperature (PVT) variations. The second technique is the power-FET …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3385662
Publisher: IEEE

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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 4-Element Ka-Band Phased-Array Receiver With Code-Domain Hybrid Beamforming
A 4-Element Ka-Band Phased-Array Receiver With Code-Domain Hybrid Beamforming 150 150
Author(s): Ziyi Lin, Haikun Jia, Chuanming Zhu, Wei Deng, Huabing Liao, Bao Shi, Lujie Hao, Xiangrong Huang, Baoyong Chi

Abstract:

This letter presents a 4-element phased-array receiver with code-domain hybrid beamforming (CDHBF) in 65-nm CMOS technology. Code-division multiplexing is used to fully preserve the flexibility in the digital domain while using a single RF interface, which reduces the RF chain complexity, reduces the chip area, and improves power efficiency. Phase …

Published in: IEEE Solid-State Circuits Letters
Page(s): 123 – 126
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3379562
Publisher: IEEE

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A 90 µW at 1 fps and 1.33 mW at 30 fps 120-dB Intrascene Dynamic Range 640 × 480 Stacked Image Sensor for Autonomous Vision Systems
A 90 µW at 1 fps and 1.33 mW at 30 fps 120-dB Intrascene Dynamic Range 640 × 480 Stacked Image Sensor for Autonomous Vision Systems 150 150
Author(s): Pierre-François Rüedi, Riccardo Quaglia, Hans-Rudolf Graf

Abstract:

We present an ultralow-power high dynamic range (DR) image sensor dedicated to autonomous vision systems, produced in a back illuminated 65 nm/40 nm stacked process and based on a time-to-digital pixel with in-pixel A/D conversion and data memory. Key to the low-power consumption is a new in-pixel comparator without dc …

Published in: IEEE Solid-State Circuits Letters
Page(s): 106 – 109
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3370797
Publisher: IEEE

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