Title :
A new digital to analog converter resistor string architecture
Author :
Oborn, Patrick K. ; Comer, Donald T.
Author_Institution :
Dept. of Electr. Eng., Brigham Young Univ., Provo, UT, USA
Abstract :
This paper introduces a resistor string architecture for implementing a digital to analog converter on a CMOS circuit process. The proposed circuit maintains the advantages of guaranteed monotonicity inherent in previous resistor string architectures but provides a higher efficiency of resistor usage. Using “virtual resistance coding” it is possible to obtain a very high integral and differential linearities (~0% LSB). Likewise, this DAC architecture requires only one buffer amplifier, offering potential high-speed operation
Keywords :
CMOS integrated circuits; buffer circuits; digital-analogue conversion; CMOS circuit process; buffer amplifier; differential linearities; digital to analog converter; high-speed operation; integral linearities; monotonicity; resistor string architecture; virtual resistance coding; CMOS analog integrated circuits; CMOS digital integrated circuits; CMOS process; CMOS technology; Decoding; Digital-analog conversion; Linearity; Resistors; Switches; Voltage;
Conference_Titel :
ASIC Conference and Exhibit, 1997. Proceedings., Tenth Annual IEEE International
Conference_Location :
Portland, OR
Print_ISBN :
0-7803-4283-6
DOI :
10.1109/ASIC.1997.617026
