Ultra-wide dynamic range 1.75 dB noise-figure, 900 MHz CMOS LNA

Efforts toward single-chip transceivers for wireless communications motivate integration of the low-noise amplifier (LNA) in CMOS technology. However, LNA design for CDMA and W-CDMA/UMTS transceivers operating from 860 to 2150 MHz typically requires input IP3/spl ges/0 dBm and noise figure NF/spl les/1.8. A wide-dynamic-range 900 MHz CMOS LNA uses the CMOS part of an RF dedicated BiCMOS process with 0.35 /spl mu/m minimum channel length. The process features on-chip inductors with Q>8-10, nMOS f/sub T/>26 GHz and nMOS transistors separated from the substrate.

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