Design of Current Mode Low Power Flash ADC Structure for High Speed Circuits

A low-power high-speed current comparator-based analog to digital converter design is proposed in this paper. We have analyzed the response of the current comparator circuit that uses the current conveyor as an integral part. The circuit resulted in low power consumption of the 158 micro Watt at 0.1 milli Amperes current and a very less propagation delay of 0.4 nanoseconds. During the analysis, we have also found the overall response of the ADC having a low power dissipation and a high accuracy system. Simulations are done using P-spice on 0.18 µm technology with 1.8 Volts supply voltage.