A Highly Re-configurable Bit-level Duty Cycled TRF Receiver Achieving -106 dBm Sensitivity and 33 nW Average Power Consumption

This work presents a reconfigurable wake-up receiver, which obtains -106dBm sensitivity with power consumption as low as 33nW. Bit-level duty cycling provides 68dB RF gain at sub-μW average power consumption, improving sensitivity over other sub-μW receivers. The receiver rejects interference using a compact RF MEMS filter and a fully automatic gain and offset control loop. Digital tuning of DC power, latency, and sensitivity provides high levels of flexibility to enable a wide variety of applications, spanning latency from 240ms to 5s, DC power consumption from 288nW to 33nW, and sensitivity from -106dBm to -103dBm. Three example modes are presented to highlight the range of this tuning.