Disclosed herein are a time division sampling digital to analog converter
for a flat panel display, a method of implementing the digital to analog
converter, and a data driver circuit using the digital to analog
converter. The time division sampling digital to analog converter
includes a timing signal generation means for generating timing signals,
a data selection means for receiving n-bit digital data, dividing the
n-bit digital data into k groups, and outputting the divided digital
input data; k reference signal generation means for each outputting
2.sup.n/k analog reference signals; a reference signal selection means
for receiving the outputs of the reference signal generation means and
outputting only 2.sup.n/k analog reference signals selected according to
a timing signal from the timing signal generation means; a multiplexer
for outputting one of reference signals from the reference signal
selection means using the n/k-bit digital data from the data selection
means as a control input; and a sampling mode analog addition means for
sampling and storing the output of the multiplexer according to a timing
signal from the timing signal generation means.