A CMOS Wideband Highly Linear Low-Noise Amplifier for Digital TV Applications

Autor: In-Young Lee, Hong-Soo Cho, Dong Sam Ha, Sang-Gug Lee, Jeong-Yeol Bae, Suna Kim
Rok vydání: 2013
Předmět:
Zdroj: IEEE Transactions on Microwave Theory and Techniques. 61:3700-3711
ISSN: 1557-9670
0018-9480
Popis: This paper presents a highly linear wideband differential low-noise amplifier (LNA) for digital TV applications. The proposed LNA is a modified version of the wideband LNA reported by Bruccoleri in 2004. In order to increase the linearity of Bruccoleri 's LNA, the Volterra series is adopted to identify the nonlinear components and the noise-cancelling circuit is modified to eliminate the whole nonlinear components. Implemented in 0.13-μm CMOS technology, the proposed wideband LNA has a gain of 12.4 dB and a noise figure of 1.6 dB, as determined from measurements, while drawing 18.45 mA from a 1.2-V supply. The proposed LNA has an IIP3 of 16.6 dBm with 6-MHz frequency offset at 100 MHz, far exceeding the values of existing wideband LNAs.
Databáze: OpenAIRE