An area-efficient 10-bit two-stage DAC for active matrix organic light-emitting diodes display drivers

摘要

This paper presents a compact and area-efficient 10-bit DAC for active matrix organic light-emitting diodes (AMOLEDs) display drivers. The proposed DAC contains a voltage-selecting stage and a voltage-dividing stage. Compared with the conventional 10-bit capacitor-DAC, the switch number of decoders is reduced by 48.8%. A rail-to-rail class B buffer is utilized as the output buffer, which has a large transient driving capability with little static current. The simulation results show that the worst integral and differential nonlinearities are 1.16 LSB and 0.64 LSB, respectively, and the setting time within 0.1% error of the final voltage for a full swing is 6.43μs.