A Multichannel, MEMS-Less −99dBm 260nW Bit-Level Duty Cycled Wakeup Receiver

Anjana Dissanayake, Henry L. Bishop, Jesse Moody, Henry Muhlbauer, Benton H. Calhoun, Steven M. Bowers

202017 citationsDOI

Abstract

This paper describes a -99dBm sensitivity, 260nW 434 MHz ISM band wakeup receiver (WuRX) in 65nm CMOS without MEMS filters, which is 18dB better sensitivity than any prior MEMS-less sub-μW design. The WuRX supports a new Channel-Embedded OOK single-tone TX scheme to enable multichannel operation without a local oscillator, improving usability for long-range, high density IoT applications. Reconfigurable within-bit duty cycling of the tuned-RF front end trades power for latency between 260ms latency at 2.17μW and 2.6s latency at 260nW.

Topics & Concepts

Latency (audio)CMOSDuty cycleSensitivity (control systems)Electrical engineeringMicroelectromechanical systemsComputer scienceElectronic engineeringISM bandWirelessEngineeringTelecommunicationsVoltageOptoelectronicsPhysicsRadio Frequency Integrated Circuit DesignPhotonic and Optical DevicesAdvancements in PLL and VCO Technologies