Kang-Jin Lee, Eunsu Shin, Hee-Suk Yang, Ju-Hwa Kim, Pil-Un Ko, Il-Ryong Kim, Seunghoon Lee, Kyoung-Ho Moon, Jae-Whui Kim
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A 9Onm CMOS 0.28mm2 1V 12b 40MS/s ADC with 0.39pJ/Conversion-Step
A 1V 12b 40MS/s pipelined ADC using a proposed two stage folded cascaded opamp for low voltage and a proposed frequency compensation technique for fast settling achieves a FOM of 0.39pJ/conversion-step. The prototype ADC implemented in a 90nm digital CMOS process with an active die area of 0.28mm2 consumes 16mW from a 1V power supply. It shows 62dB SNDR and 73dB SFDR for a 5 MHz input at a 40MHz sampling clock.