08-01-2014, 02:32 PM
Design of 4 Bit Flash ADC using Improved threshold Inverter Comparator
Abstract:
This Paper introduces 4 bit flash ADC design using Improved Threshold Inverter logic based comparators for high speed and low power consumption using 180nm technology. Thermometer to binary decoder with low power consumption, less area & short critical path is selected for the design of low power high speed. Proposed comparator provides improved PSRR (Power Supply Rejection Ratio) compared TIQ (Threshold Inverter Quantizer) comparator.NAND based topology is used which improves PSRR as well as linearity; thus eliminates basic limitation of TIQ inverter.