A Fully Differential 7.2-8.5GHz LNA for a Self Synchronized and Duty-Cycled UWB OOK Receiver

Abstract

This paper presents a low power Impulse-Radio Ultra-WideBand (IR-UWB) receiver for low range and low data rates applications. The receiver adopts a non coherent detection with duty cycling that allows very low power consumption. The receiver operates in the high band of the UWB frequency band. It has been designed for the 7.2-8.5GHz bandwidth and covers channels 8, 9, 10, and 11 of the IEEE 802.15.4a standard. The receiver has been implemented in 130nm standard CMOS process and occupies an area of 1.5mm2. Post-layout simulations of the fully differential Low Noise Amplifier (LNA) including parasitic effects of the package show 40 dB voltage gain and 4 dB noise figure. The LNA turn on time is less than 3 ns. When synchronized and duty cycled with an analog Clock and Data Recovery (CDR) with 23ns peak to peak jitter the receiver consumes 1.95mW at 1Mbps data rate.