Session 27Sensor Interfaces.pdf

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1、Session 27 Overview:Sensor Interfaces ANALOG SUBCOMMI TTEEDuty-cycling and dynamic biasing improve power ef ficiency and scalability of sensor interf aces,while precision circuit techniques enable new levels of absolute accuracy.The first paper describes a partially duty-cycled MEMS Gyroscope drive

2、control loop that minimizes standby power dissipation,while the third paper presents a f requency-controlled biasing method that enables a wide range of conversion rates.The second paper demonstrates a CMOS Hall sensor with state-of-the-art of f set perf ormance.Two final papers present temperature

3、sensors that achieve state-of-the-art perf ormance in both their power ef ficiency and temperature-sensing inaccuracy.Session Chair:Caspar van Vroonhoven Analog Devices,Munich,Germany Session Co-Chair:Chinwuba Ezekwe Robert Bosch,Sunnyvale,CA 468 2025 IEEE International Solid-State Circuits Conf ere

4、nceI SSCC 2025/SESSI ON 27/SENSOR I NTERFACES/OVERVI EW979-8-3315-4101-9/25/$31.00 2025 IEEE8:25 AM 27.2 A Volt age-Biased CMOS Hall Sensor wit h 1.0T(3)Offset and a 60nT/Hz Noise-Floor Floris J.P.van Mourik,TU Delf t,Delf t,The Netherlands In Paper 27.2,TU Delf t presents a voltage-biased CMOS Hall

5、 sensor.Octagonal Hall plates are operated in spinning-current mode and read out using a current-to-digital converter.The sensor achieves a magnetic field of f set of 1.0T(3)and a noise floor of 60nT/Hz.8:50 AM 27.3 A Sub-1V 14b 5.8nW/Hz BW/Power-Scalable CT Sensor I nt erface wit h a Frequency-Cont

6、 rolled Current Source Achieving a 225 Scalable Range Xinjie Wu,Zhejiang University,Hangzhou,China In Paper 27.3,Zhejiang University and Vango Technologies present a continuous-time sensor interf ace.A f requency-controlled current source enables a gm-C CTM to achieve a near-consistent SNDR of 84dB