Title :
Design techniques for improving intrinsic accuracy of resistor string DACs
Author :
Shi, Chuizlei ; Wilson, James ; Ismail, Mohammed
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
This paper discusses design techniques for random and gradient errors compensation in resistor string digital-to-analog converters (DACs). By properly constructing the resistor string, the intrinsic accuracy of the whole DAC can be effectively improved without trimming, calibration or dynamic averaging. A design example is given and simulation results show that the proposed techniques can increase the accuracy of DAC by up to 2 bits with less than 25% area increase
Keywords :
CMOS integrated circuits; digital-analogue conversion; error compensation; CMOS process; design techniques; gradient error compensation; intrinsic accuracy improvement; random error compensation; resistor string DACs; Calibration; Control systems; Digital-analog conversion; Error compensation; Linearity; Modems; Radio frequency; Resistors; Transceivers; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921877
