An 8b 125Msamples/s 71mW A/D converter with 1.8 v power supply

An 8b 125Msample/s pipelined A/D converter is presented, which operates at a single voltage 1.8 V. Power efficiency is optimized by size scaling down scheme using single stage amplifiers with gain boosted structure. Distributed clock generators are employed to avoid loss and overlap of clock period. The converter is implemented in 0.18 μm CMOS technology with a core area of 0.45 mm². The total power dissipation is only 71 mW at full speed of 125 MHz. SIAND is 49.5 dB for an input frequency near Nyquist (Fin=62 MHz).