DESIGN AND SIMULATION OF A 10 GSPS LOW POWER SAMPLE AND HOLD LESS ANALOG TO DIGITAL CONVERTER USING CARBON NANOTUBE FIELD EFFECT TRANSISTORS

A 5 bit sample-and-hold less pipelined ADC is presented for high speed and low power applications. The architecture is designed using 32nm CNFET model in Hspice and simulation is carried out at 10 GSPS sampling rate. From the simulation results, the SNDR is found out to be 32.89dB at Nyquist frequency and the ERBW is found to be 3GHz from 2 to 5GHz in which ENOB is guaranteed to be above 4.6. The average power consumed is 5.031mW for a supply voltage of 1.4V and FoM is 53.32fJ/step.