A 0.18 /spl mu/m CMOS direct-conversion receiver front-end for UMTS

The authors present a direct-conversion receiver front-end IC which contains LNA, quadrature mixers and VGAs, realized in 0.18 μm CMOS technology. It has +48.8 dBm IIP2, -6 dBm in band IIP3 (-2 dBm out of band 113), 6.2 dB DSB NF integrated in a 10 kHz-1.92 MHz band and draws 15 mA from a 1.8 V supply.