The EL5226 and EL5326 are designed to produce thereference voltages required in TFT-LCD applications. Eachoutput is programmed to the required voltage with 10 bits ofresolution. Reference pins determine the high and lowvoltages of the output range, which are capable of swingingto either supply rail. Programming of each output isperformed using the I2C serial interface.A number of the EL5226 and EL5326 can be stacked forapplications requiring more than 12 outputs. The referenceinputs can be tied to the rails, enabling each part to outputthe full voltage range, or alternatively, they can be connectedto external resistors to split the output range and enable finerresolutions of the outputs.The EL5226 has 10 outputs and the EL5326 has 12 outputsand both are available in a 28-pin TSSOP package. Theyare specified for operation over the full -40°C to +85°Ctemperature range.