sensor interface

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A 760 mVPP-Input-Range, 103.6dB-SNDR Direct-Digitization Sensor Readout With Pseudo-Differential Integrator and Impedance-Equalized RDAC

A 760 mVPP-Input-Range, 103.6dB-SNDR Direct-Digitization Sensor Readout With Pseudo-Differential Integrator and Impedance-Equalized RDAC 150 150
Author(s): Kaiwen Zhou, Jianhong Zhou, Yijie Li, Yuying Li, Tian Dong, Zhiliang Hong, Jiawei Xu

Abstract:

A high-precision, direct-digitization sensor readout (DD-RO) based on a continuous-time delta-sigma modulator (CT- $\Delta \Sigma $ M) is presented. The proposed DD-RO incorporates several key innovations to enhance performance. First, a pseudo-differential current-balancing integrator (PD-CBI) significantly extends the linear input range, whereas its intrinsically limited common-mode input range and CMRR are …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3686843
Publisher: IEEE

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A 40k-Pixel Multimodal Biophysiology Monitoring Platform With 10k Concurrent Electrophysiology Channels and a Mixer-Embedded ΣΔ Impedance Sensor

A 40k-Pixel Multimodal Biophysiology Monitoring Platform With 10k Concurrent Electrophysiology Channels and a Mixer-Embedded ΣΔ Impedance Sensor 150 150
Author(s): Hangxing Liu, Fuze Jiang, Jingjing Zang, Marco Saif, Thomas Burger, Stephan C. F. Neuhauss, Hua Wang

Abstract:

Understanding complex physiological processes requires the ability to monitor multiple biological modalities concurrently, as electrical, ionic, and biochemical processes are tightly coupled and cannot be holistically described by single-mode sensors. This article presents a 40 nm CMOS multimodal cellular physiology monitoring platform that integrates 40 960 reconfigurable pixels at $10.8~\mu $ m pixel pitch. …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3684715
Publisher: IEEE

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A 14-b Energy-Efficient BW/Power Scalable CTDSM With a Frequency-Controlled Current Source

A 14-b Energy-Efficient BW/Power Scalable CTDSM With a Frequency-Controlled Current Source 150 150
Author(s): Xinjie Wu, Xiaopeng Yu, Nick Nianxiong Tan, Zhong Tang

Abstract:

This work presents a 14-bit energy-efficient bandwidth (BW)/power scalable continuous-time delta–sigma modulator (CTDSM) for sensor interfaces in IoT applications. To ensure low noise for small input signals and achieve BW/power scalability, it is built around Gm-C integrators biased via a linear frequency-controlled current source (FCCS). The FCCS …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 10
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3621527
Publisher: IEEE

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