Digital to analog converter

A digital to analog converter comprising:

• an X and Y-directional decoder for receiving input digital data and outputting decoded outputs corresponding to said input digital data;
• and
• plurality of unit cells arranged in a matrix form, for outputting analog data according to said decoded outputs, each of said plurality of unit cells including:
• a signal source for providing a preset analog value;
• a switching means for connecting/disconnecting said signal source to/from an analog output terminal;
• a switch control circuit for generating a control signal to control said switching means based on predetermined outputs of said decoded outputs from said X and Y-directional decoder;
• and
• a latch circuit for latching said control signal from said switch control circuit and outputting latched control signal to control an operation of said switching means.

A digital to analog converter comprising:

• an X and Y-directional decoder for receiving input digital data and outputting decoded outputs corresponding to said input digital data;
• a first latch circuit for latching said decoded outputs and outputting latched decoded outputs;
• and
• a plurality of unit cells arranged in a matrix form, for outputting analog data according to said latched decoded outputs, each of said plurality of unit cells including:
• a signal source for providing a preset analog value;
• a switching means for connecting/disconnecting said signal source to/from an analog output terminal;
• a switch control circuit for generating a control signal to control said switching means based on predetermined outputs of said latched decoded outputs from said first latch circuit;
• and
• a second latch circuit for latching said control signal from said switch control circuit and outputting latched control signal to control an operation of said switching means.