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S. Song

A 141GΩ Input Impedance Frontend IC for Biopotential Recordings with a Customized I/O Device Shielding Parasitic Capacitance
An Energy Efficient Amplifier With a Closed-Loop G m-Boosting Stage and Current-Mirror-Based SR Enhancement for Driving Large Capacitive Loads
An Energy Efficient Amplifier with a Closed Loop Gm-Boosting Output Stage for Large Capacitive Loads Achieving 686,685 MHz▪ pF/mA IFoMs
A 30-μW 94.7-dB SNDR noise-shaping current-mode direct-to-digital converter using triple-slope quantizer for PPG/NIRS readout
Analog-to-digital converter circuitry, an integrated circuit device, a photoplethysmogram detector, a wearable device and a method for analog-to-digital conversion
28.3 A 28μW 134dB DR 2 nd-Order Noise-Shaping Slope Light-to-Digital Converter for Chest PPG Monitoring
A 134 DB dynamic range noise shaping slope light-to-digital converter for wearable chest PPG applications
A 119dB dynamic range charge counting light-to-digital converter for wearable PPG/NIRS monitoring applications
A 50μW fully differential interface amplifier with a current steering class AB output stage for PPG and NIRS recordings
Wearable multiple modality bio-signal recording and processing on chip: A review
A 196μW, reconfigurable light-to-digital converter with 119dB dynamic range, for wearable PPG/NIRS sensors

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