Noise

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A 25-kHz-BW 97.4-dB-SNDR SAR-Assisted Continuous-Time 1-0 MASH Delta–Sigma Modulator With Digital Noise Coupling
A 25-kHz-BW 97.4-dB-SNDR SAR-Assisted Continuous-Time 1-0 MASH Delta–Sigma Modulator With Digital Noise Coupling 150 150
Author(s): Dong-Hun Lee, Kent Edrian Lozada, Ye-Dam Kim, Ho-Jin Kim, Youngjae Cho, Michael Choi, Seung-Tak Ryu

Abstract:

This article introduces a high-resolution continuous-time delta–sigma modulator (CT DSM) architecture that incorporates a successive approximation register (SAR)-assisted digital noise coupling (DNC) technique and a multi-stage noise-shaping (MASH) structure. The limited maximum stable amplitude (MSA) problem due to the high-order-shaped large quantization error ( $Etextsubscript{1}$ ) in the previous …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 10
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3391902
Publisher: IEEE

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A Low-Power, Compact, 0.1–5.5-GHz, 40-dBm IB OIP3 LNTA-First Receiver for SDR
A Low-Power, Compact, 0.1–5.5-GHz, 40-dBm IB OIP3 LNTA-First Receiver for SDR 150 150
Author(s): Cong Tao, Liangbo Lei, Chaoyang Zheng, Yumei Huang, Zhiliang Hong, Xiaoyang Zeng

Abstract:

This article presents a low-power (LP), compact, wideband (WB) low-noise transconductance amplifier (LNTA)-first receiver (RX) designed for software-defined radios (SDRs). It comprises the LNTA, frequency divider, mixer, and trans-impedance amplifier (TIA). The LNTA utilizes a common gate (CG)-common source (CS) structure without on-chip inductors and incorporates gm-boosting and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3379892
Publisher: IEEE

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