A 1.8-GΩ Input-Impedance 0.15-μV Input-Referred-Ripple Chopper Amplifier With Local Positive Feedback and SAR-Assisted Ripple Reduction.
Tianxiang QuQinjing PanLiheng LiuXiaoyang ZengZhiliang HongJiawei XuPublished in: IEEE J. Solid State Circuits (2023)