A broadband, inductorless LNA for multi-standard aplications

Abstract

In this paper a novel broadband, inductor-less, resistive-feedback, CMOS LNA is presented. The amplifier is designed for the frequency band 0.3 GHz-2 GHz. The measured voltage gain of the implemented LNA is 12 dB at 1 GHz and the 3 dB bandwidth is 2 GHz. An IIP3 of -16 dBm and a noise figure of 4 dB are measured at 900 MHz. The value of the measured IIP2 is -13 dBm. The Sll is better than -10 dB in the frequency band from 300 MHz up to 1 GHz. The power dissipation is 18 mW from a 1.2 V supply. The circuit is designed in a digital CMOS 90 nm low power (LP) process without extra process options.