Design of ultra-low voltage integrated CMOS based LNA and mixer for ZigBee application

Abstract

This work describes the design and implementation of an ultra-low voltage, ultra-low power fully differential low noise amplifier (LNA) integrated with a down-conversion mixer for 2.4GHz ZigBee application. An inductive-degenerated cascoded LNA is adapted and integrated with a double-balanced mixer which is targeted for low-power application. The proposed design has been extracted and simulated in a 0.13μm standard CMOS technology. With a power consumption of 905μW at a voltage headroom of 0.5V, the proposed LNA-mixer integration reaches out to an integrated noise figure (NF) of 7.2dB, a gain of 22.3dB, 1dB compression point (P1dB) of −22.3dBm and input-referred third-order intercept point (IIP3) of −10.8dBm.