Evalution of ADC to Near Infrared Charging for Bio-sensing and Healthcare Applications

The proposed successive approximation register (SAR) analog-to-digital converter (ADC) for integrates healthcare sensor (HC). The healthcare sensor (HS) including heart rate monitor (HRM) and pulse oximeter (OX) is presented. Optimal DAC exchanging energy, a hybrid resistor capacitor DAC is promoted. The optimal design used charging near infrared laser driven (NIRLD) with thin Fresnel and OPVs light with VCSEL. The evaluation of accuracy and latency in line with chest-belt comparison of optical sensor between benchmarking. The optical sensor might be a promising OPVs light power supplier and low consumption, asynchronous control logic to fall in the ADC is used. The kickback noise can improve by comparator of pre-amplifier from dynamic latch design.