P.-Y. HsiaoY.-H. LiuTSUNG-HSIEN LIN2018-09-102018-09-102011-11http://scholars.lib.ntu.edu.tw/handle/123456789/366798An energy-efficient ASK receiver (RX) designed for bio-medical application is presented. The RX is based on the super-regenerative architecture and incorporates a fast frequency calibration and a ΔΣ-based pulse-width demodulator (ΔΣ-based PWD) to enhance the pulse-width resolution of the demodulator. This RX is designed to operate at the 400-MHz band. The proposed fast frequency calibration based on the SAR algorithm can accomplish the frequency calibration in 12 reference cycles. The proposed ΔΣ-based PWD can be viewed as a pulse-width domain ΔΣ modulator which improves the performance of the demodulator. Realized in a 0.18-μm CMOS process, this RX draws 1.37 mA from a 1-V supply. With a 1-Mbps data rate, the RX achieves an energy efficiency of 1.37 nJ/bit and -75 dBm sensitivity. © 2011 IEEE.[SDGs]SDG7ASK receiver; Biomedical applications; CMOS processs; Data rates; Energy efficient; Frequency calibration; Pulsewidths; Calibration; CMOS integrated circuits; Demodulators; Medical applications; Energy efficiencyconference paper10.1109/asscc.2011.61235922-s2.0-84863080864