Title :
A self-calibration method for fast high-resolution A/D and D/A converters
Author_Institution :
Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisburg, West Germany
fDate :
6/1/1989 12:00:00 AM
Abstract :
Monolithic analog-to-digital (A/D) and digital-to-analog (D/A) converters suffer from the limited accuracy of the available circuit compensators. A self-calibration method allows the correction of the linearity errors of binary-weighted current-source arrays commonly used in high-speed converters. To achieve high-calibration accuracy a modified dual-slope method is used. This makes it possible to implement A/D and D/A converters with a resolution of 14 b or more at a conversion time of less than 15 μs
Keywords :
analogue-digital conversion; calibration; digital-analogue conversion; monolithic integrated circuits; 15 mus; A/D convertors; ADC; D/A converters; DAC; binary-weighted current-source arrays; conversion time; high-resolution; high-speed converters; modified dual-slope method; monolithic type; self-calibration method; Calibration; Capacitors; Counting circuits; Error correction; Helium; Linearity; Signal resolution; Switches; Thermal stresses; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
