RF mixers are critical components that make up the modern transceivers used in 3G and 4G wireless infrastructure, communication gears and military systems. The receivers’ robustness depends on their dynamic range performance. The LTC5540/41/42/43 family of RF downconverting mixers covering frequencies from 600MHz to 4GHz, offers outstanding IIP3, conversion gain and noise figure performance. In addition, these mixers consume 40% less power than their closest rivals, while capable of handling unusually high in-band interference than any other comparable devices. Moreover, these mixers require fewer external components that reduce the solution footprint. Thus these best-in-class mixers allow us to build compact, power efficient receivers without compromising performance.