High frequency CMOS switched capacitor filters for communication applications

Bandpass filters for communications applications using an 80MHz differential single-stage CMOS opamp and a fully differential idential-resonator elliptic bandpass ladder filter configuration will be reported. Experimental results from a CMOS sixth order 260kHz elliptic bandpass filter with Q of 40, clock frequency of 4MHz and power dissipation of 120mW, will be presented.