A 9.2 mW, 4-8 GHz Resistive Feedback CMOS LNA with 24.4 dB Gain, 2 dB Noise Figure, and 21.5 dBm Output IP3

A 9.2 mW resistive feedback CMOS low-noise amplifier with a 3-dB bandwidth of 3.94 GHz (4.04 -7.98 GHz) is presented. At 5.5 GHz, the fully integrated LNA achieves a measured gain above 24 dB, a noise figure of 2 dB, and an output IP3 of 21.5 dBm. The LNA draws 7.7 mA from the 1.2 V supply and utilizes a single compact low-Q on-chip inductor. The LNA is implemented in a 90-nm CMOS process and occupies a die area of only 0.022 mm
²
.