21.1 Sub-1mV-Accuracy, 24-CH Synchronous Battery Monitoring IC with Bipolar-Sampling ADCs and Calibration Engines

Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference 2026

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Authors: Jeongwon Han, Sunsik Woo, Kwang-Seok Oh, Donghyeon Kim, Youngwoon Ko, Won-Jong Choi, Seungjun Han, Kyungdam Park, Juncheol Choi, Jinseop Lee, Jin-Yong Jeon, Young‐Suk Son
+2 more Sang-Gug Lee, Kyeongha Kwon
DOI: 10.1109/isscc49663.2026.11408970
Cited by: 0
References: 7

Abstract

This paper presents a 24-CH BMIC with sub-1mV accuracy and enhanced fault detection for EVs. Dedicated bipolar-sampling ADCs enable simultaneous measurements across -2 V to +5 V input ranges, supporting busbar fault detection. Bipolar operation uses only 12 V-rated MOS through active body biasing and clock doubling. Calibration engines correct for CH-dependent gain variations and input offsets. Fabricated in 0.13µm BCD, the BMIC achieves sub- 1 mV accuracy across -2 V to +5 V and -40° C to +130° C.

Fields of Study & Subjects

Analog and Mixed-Signal Circuit Design Battery Modeling and Management Low-power high-performance VLSI design

Publication details

Journal / source
Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
Pages
364–366
Publication date
15 February 2026
Language
EN