It is a fast 6-Bit Phase Quantizer based on the Flash ADC architecture. It calculates relative phase information and converts phase into 6-Bit binary data within 25nS. An active-low Chip Enable pin allows to turn off the power consuming block. Additional GLB pin is added to latch the thermometric code. An input LPF with cut-off frequency 100MHz is added to cancel out errors due to offset gain mismatch and noise. Low amplitude input signal can also be quantized due to the implementation of high resolution and high-speed comparator. The output of phase quantizer is 6-bit binary. Each output is having a driver and capable of handling 10p load.