A 2.4GHz LNA in a 90-nm CMOS technology designed with ACM model

As part of a Low-IF ZigBee receiver, a 2.4GHz differential common source low noise amplifier, implemented in a 90nm mixed/RF 7M CMOS process and designed in moderate inversion, is presented in this work. Design methodology and simulation results from Spectre-RF simulator are presented. With 2.5V supply voltage, the LNA achieves a noise figure of 2.5dB, an IIP3 of 1dB and gain higher than 10dB, with a current consumption of 12mA. The LNA area without pads is 720μm x 710μm.

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