offset calibration

  • No Comments

A 4-GS/s 53.5-dB SNDR 12.9 fJ/conv. TI-SAR ADC With Capacitive Nonlinearity Compensation and Dual-Mode Offset Calibration

A 4-GS/s 53.5-dB SNDR 12.9 fJ/conv. TI-SAR ADC With Capacitive Nonlinearity Compensation and Dual-Mode Offset Calibration 150 150
Author(s): Jiazhen Ni, Dayi Zhou, Minqing Cai, Chen Chen, Xiang Gao, Seung-Chul Lee

Abstract:

Successive approximation register (SAR) analog-to-digital converters (ADCs) often employ dual-mode dynamic comparators to achieve both high speed and low noise. However, under low-supply operation, offset drift from mode transitions and degraded front-end linearity due to limited signal headroom become critical challenges. To address these issues, an adaptive current-injection scheme suppresses …

Published in: IEEE Solid-State Circuits Letters
Page(s): 214 – 217
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3713349
Publisher: IEEE

View on IEEE Xplore

  • No Comments

A Stress- and Temperature-Compensated TMR Current Sensor With ±0.13% Sensitivity Variation

A Stress- and Temperature-Compensated TMR Current Sensor With ±0.13% Sensitivity Variation 150 150
Author(s): Tianxiang Qu, Nan Wang, Zuo Zhang, Longxi Xiang, Ting Yi, Zhiliang Hong, Xiaoyang Zeng, Jiawei Xu

Abstract:

This article presents a high-precision tunnel magnetoresistance (TMR)-based non-contact current sensor with enhanced immunity to sensitivity drift. A background sensitivity stabilization loop (SSL) continuously regulates the TMR bias voltage to compensate intrinsic sensitivity variations. Through this closed-loop regulation, sensitivity drift of the TMR sensor induced by temperature, mechanical stress, …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3719689
Publisher: IEEE

View on IEEE Xplore

Search this website