A 12b 50MS/s 10.2mA 0.18μm CMOS nyquist ADC with a fully differential class-AB switched op-amp

초록

A 12b 50MS/s pipelined ADC based on a fully differential class-AB switched op-amp achieves low power consumption with a high differential input range of 2.4Vp-p. The proposed input sampling network samples wideband signals exceeding the Nyquist frequency without a SHA. The prototype ADC in a 0.18 mu m CMOS shows a power dissipation of 18.4mW at 50MS/s and 1.8V with an active die area of 0.26mm(2).

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