Sina presents SpO2 sensor paper at ISSCC 2022

Sina Faraji Alamouti presented a paper (20.7) at the 2022 International Solid-State Circuits Conference on “An SpO2 Sensor Using Reconstruction-Free Sparse Sampling for 70% System Power Reduction”. The presentation was delivered as part of the session on “Body and Brain Interfaces”, with the live Q&A held on Feb 23, 9:30-9:40 am PST. Read the paper here.

Abstract: We present a low power sensor interface IC for continuous monitoring of blood oxygen (SpO2) and heart rate. The IC uses a 3.75μW transimpedance front-end (TFE) with a reconstruction-free sparse sampling technique that, compared with continuous mode, reduces the LED and total system powers by 75% and 70% respectively. Compared with prior art, this work achieves ~2.7x lower overall power consumption and the lowest input-referred noise, while reducing errors to <1% SpO2 and <1bpm heart rate error.