Low voltage low power fully differential self-biased 1.5-bit quantizer with built-in thresholds

A new fully differential self-biased 1.5-bit flash quantizer with built-in threshold voltages, suitable for high speed ADCs and low voltage operation, is described. The proposed circuit is very simple, and simulation results in a 65 nm standard CMOS technology demonstrate that, following the suggested design methodology, it is able to achieve low offset, low kickback noise, low metastability probability errors and fast regeneration time with very low power dissipation.