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The ADC is fabricated in 90 nm digital CMOS process. The chip consumes 34 mW at 300MS/s (fin=fs/2) from 1.2 V analog/digital and 2.5 V T/H-switches supply. At 100 MS/s (fin= fs/2), it consumes 6.7 mW from 0.75 V analog/digital and 1.5 V T/H-switches supplies. FOMs are 780 fJ/conversion-step at 300 MS/s (fin=fs/2), 680fJ/conversion-step at 300MS/s (fin=2MHz), 350 fJ/conversion- step at 100 MS/s (fin=fs/2) and 290 fJ/conversion-step at 100 MS/s (fin=2MHz).The active area is 0.29 mm2.