Title :
Error cancellation technique for capacitor arrays in A/D and D/A converters
Author :
Tröster, Gerhard ; Herbst, Dieter
Author_Institution :
Telefunken Electron. GmbH, Heilbronn, West Germany
fDate :
6/1/1988 12:00:00 AM
Abstract :
An error-correction technique for monolithic high-speed A/D and D/A converters, based on binary weighted capacitor arrays, is introduced. Each capacitor in the array has its individual calibration capacitor and voltage source. The calibration voltages are generated by resistive DACs. An N-bit converter requires N additional capacitors, N analog switching matrices, and N bytes of memory space. The error-acquisition technique and practical design considerations are presented
Keywords :
analogue-digital conversion; calibration; digital-analogue conversion; error correction; field effect integrated circuits; A/D convertors; ADC; D/A converters; DAC; MOS type; analog switching matrices; binary weighted capacitor arrays; calibration capacitor; calibration voltages; error-acquisition technique; error-correction technique; monolithic high-speed convertors; voltage source; Calibration; Error correction; Linearity; MOS capacitors; Matrix converters; Switches; Switching circuits; Switching converters; Very large scale integration; Voltage;
Journal_Title :
Circuits and Systems, IEEE Transactions on
