3.8 Proceedings Paper

An Analog Front-End Employing 87 dB SNDR Stochastic SAR-ADC for a Biomedical Sensor

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IEEE

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  1. Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-STEP) of Japan Science and Technology Agency (JST)
  2. Funding Program for Strategic Support Industry through the Ministry of Economy, Trade and Industry

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The present paper introduces a novel ADC for biomedical sensors that embeds successive-approximation register ADC and stochastic flash ADC operations. The ADC in the analog-front-end IC fabricated in a 130-nm CMOS process demonstrated 87 dB SNDR for a 20.5 Hz input signal at an oversampling rate of 250 kS/s with calibration by a supervised machine learning technique.

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