DIGITAL ANALOG CONVERTER AND A METHOD FOR CORRECTING A CURRENT SOURCE OF THE DIGITAL ANALOG CONVERTER CAPABLE OF IMPROVING MISMATCH PROPERTIES OF THE CURRENT SOURCE IN THE DIGITAL ANALOG CONVERTER

摘要

PURPOSE: A digital analog converter and a method for correcting a current source of the digital analog converter are provide to reduce an area of circuit by digitizing the most of a circuit for correcting a digital analog converter.;CONSTITUTION: A current comparator(120) compares currents from two current sources(110) by receiving addresses of the two current sources from a comparison signal generator(160). A group address, which is arranged according to the size of the current from the current source bound in a group, is saved in a group array register(140). The address, which is arranged according to the size of the current from the current source, is saved in the unit array register. An non-group register(170) stores a grouped address by receiving the address from the group array register and the unit array register. An RAM data generator(180) generates a mapping table stored in mapping memory(190). A comparison signal generator generates a control signal. A array controller(130) arrays the address of the current source.;COPYRIGHT KIPO 2012