A 3.3 V transconductor in 0.35 /spl mu/m CMOS with 80 dB SFDR up to 10 MHz

Abstract

A CMOS transconductor uses resistors at the input and an OTA in unity-gain feedback to achieve 80 dB SFDR for 3.6 V/sub pp/ differential inputs up to 10 MHz. The transconductance core dissipates 10.56 mW from a 3.3 V supply and occupies 0.4 mm/sup 2/ in a 0.35 /spl mu/m CMOS process.