Mixed-Signal ADC Architectures Flash ADC PLL Building Blocks PFD Ring Oscillator VCO Single Modulus Prescaler Dual Modulus Prescaler Charge Pump Fractional Clock Divider with DSM Fractional Clock Divider with Accumulator Utilities Binary Vector Conversion Lowpass Resampler Logic Decision Variable Pulse Delay Slew Rate Timing Measurement Timing and Delay Measurement