Title :
Self-calibration for high-speed, high-resolution D/A converters
Author :
Tang, A.T.K. ; Toumazou, C.
Author_Institution :
Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
This paper proposes the use of digitally-controlled trimmable current sources and self-calibration to obtain a high-speed, high-resolution CMOS D/A converter. An accuracy of 14-bits has been targeted, and simulation results have shown a 15ns settling time to 0.5LSB. A full-scale output current of 10-20 mA allows 50Ω loads to be driven directly. The DAC can be fabricated using a standard digital CMOS process; no special analogue options are required
Keywords :
CMOS digital integrated circuits; calibration; constant current sources; digital-analogue conversion; 10 to 20 mA; 14 bit; 15 ns; 50 ohm; accuracy; digital CMOS process; digitally-controlled trimmable current sources; full-scale output current; high-resolution D/A converters; self-calibration; settling time;
Conference_Titel :
Advanced A-D and D-A Conversion Techniques and their Applications, 1994. Second International Conference on
Conference_Location :
Cambridge
Print_ISBN :
0-85296-617-2
DOI :
10.1049/cp:19940557
