Wootaek Lim, Taekwang Jang, Inhee Lee, Hun-Seok Kim, Dennis Sylvester, David Blaauw
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A 380pW Dual Mode Optical Wake-up Receiver with Ambient Noise Cancellation.
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.