The Flash ADC is a monolithic, high-speed, low-latency analog-to-digital converter silicon IP optimized for applications requiring ultra-fast signal acquisition and minimal conversion delay. Utilizing a fully parallel architecture, the IP achieves one-clock-cycle conversion by simultaneously comparing the single-ended input signal (IN) against voltage reference using the array of 2^5-1 high-speed clocked comparators. Reference voltages for comparator array are generated by external resistor ladder with bias. The IP includes thermometer-to-binary encoding for making 5bit digital output (OUT). It supports high-frequency sampling up to 200MHz. Fabricated in a 28 nm CMOS process, the IP occupies 0.04mm2 of core area.