6-bit low power Semi-Flash ADC for Data Acquisition System

Objective :
Implementation of 6-bit Semi-Flash ADC with low power consumption in 180nm technology

EDA Tools : Electric, LT
Spice

Semi-Flash ADC is implemented by taking advantage of two commonly used ADCs- Flash ADC used for high speed and SAR ADC used for low power consumption. With reduction in number of comparators used, Semi-Flash ADC shows considerable amount of reduction in power consumption. Such low power ADCs are very useful in Data Acquisition System that collect information to document or analyze some phenomenon.



Specifications

Power Supply : 1.8 V

Reference Voltage : 1.2 V

Sampling Rate : 125Msps

Power Consumption : 203µW

Die Size (µm2) : 3.887 x 2.050