Tse-Wei Wang, Yi-Lin Tsai, Chong-Rong Lee, Fu-Lian Hung, Tsung-Hsien Lin
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A 0.5-V sub-mW energy-efficient receiver in 0.18-μm CMOS for IoT applications
A 0.5-V differential BPSK (D-BPSK) receiver (RX) realized in 0.18-μm CMOS is presented in this paper. This RX adopts the injection-locking technique to demodulate the received signal. The core of this RX is an injection-locked oscillator which converts the input phase transition to envelope variation for demodulation. This work is fabricated in TSMC 0.18-μm CMOS technology. The proposed RX consumes 0.97 mW from a 0.5-V supply. The sensitivity is −45 dBm. At 10-Mbps data rate, the energy efficiency is 97 pJ/b.