A 2-GS/s 8-bit Non-Interleaved Time-Domain Flash ADC Based on Remainder Number System in 65-nm CMOS.

A non-interleaved 2-GS/s, 8-bit flash analog-to-digital converter (ADC) utilizing the remainder number system (RNS) quantization principle is presented. The RNS quantization reduces the number of comparators and thus improves the figure of merit of the flash ADC. A time-domain implementation is adopted to reduce the ADC input capacitance with a voltage-to-time converter (VTC) front end. The ring o...