Inverter Threshold Comparator Based Optimized 3-Bit Flash ADC

In modern electronics, an Analog-to-Digital Converter (ADC) plays a pivotal role by converting continuous analog signals into discrete digital representations, facilitating easy processing by microprocessors. Traditional Flash ADCs use op-amp-based bulky comparators whereas ITC-based Flash ADC uses only a single inverter as a comparator. In this work, ITC-based topology is combined with a mux-based encoder, thereby limiting the total number of transistors to 36 and yielding an area of 0.0039 mm2 and power consumption of 27.44 uW for a 10 MS/s sampling rate, after layout extraction.