A low-area 10b column driver with resistor-resistor-string DAC for mobile active-matrix LCDs

A 10b LCD column driver with resistor-resistor string DAC (RRDAC) is proposed having 0.24, 0.37 LSB of DNL and INL, and 17.4% of area shrinkage compared with an 8b LCD column driver with traditional resistor string DACs. To resolve the problems of the previous RRDACs such as power consumption increase, and inapplicability for nonlinear gamma curve, we propose an RRDAC using voltage-drop compensated coarse decoders.