A 2.5nJ/b 0.65V 3-to-5GHz Subbanded UWB Receiver In 90nm CMOS

The IC is a non-coherent 0-to-16Mb/s UWB receiver using 3-to-5GHz subbanded PPM signaling implemented in a 90nm CMOS process. The RF and mixed-signal baseband circuits operate at 0.65V. Using duty-cycling, adjustable BPFs, and an energy-aware baseband, the receiver achieves 2.5nJ/b and 10^-3 BER with -99dBm sensitivity at 100kb/s.