DC-Coupled Biasing Technique for Quantized-Analog Amplifiers

A new DC-coupled biasing technique for Quantized-Analog Amplifier is presented. Compared to the traditional approach based on an AC-coupled resistive ladder, the proposed solution based on a switched capacitor floating battery, enables individual offset control, low frequency operation, agile calibration and compact area. Simulations done using 22 nm FD-SOI technology are reported as proof of the effectiveness of the presented idea.