Digital-to-analog-converter, has memory for storing digital information representing control voltages, and auxiliary-digital-analog-converter receiving information from memory and generating voltages for voltage sources

摘要

The converter (300) has resistive elements connected in a chain, and electric field-applying circuits connected to one of the resistive elements, where each element has a polysilicon resistance segment. A control voltage generator applies control voltages to the circuits, where the control voltages are independent of each other. A memory (200) stores digital information representing the control voltages. An auxiliary-digital-analog-converter (210) receives the digital information from the memory and generates the control voltages for voltage sources. An independent claim is also included for a method for operating a digital-to-analog-converter.