A 380pW Dual Mode Optical Wake-up Receiver with Ambient Noise Cancellation

Symp VLSI Circuits. 2016 Jun:2016:10.1109/VLSIC.2016.7573481. doi: 10.1109/VLSIC.2016.7573481. Epub 2016 Sep 22.

Abstract

We present a sub-nW optical wake-up receiver for wireless sensor nodes. The wake-up receiver supports dual mode operation for both ultra-low standby power and high data rates, while canceling ambient in-band noise. In 0.18µm CMOS the receiver consumes 380pW in always-on wake-up mode and 28.1µW in fast RX mode at 250kbps.