Title :
Equivalent circuit of multiplying d.a.c. using R-2R ladder network
Author :
Zurada, Jozef ; Goodman, K.
Author_Institution :
Auburn University, Electrical Engineering Department, Auburn, USA
Abstract :
An equivalent circuit of a multiplying digital-analogue convertor using a switched R-2R ladder is derived. This circuit consists of dependent sources, output resistance and capacitance, all digitally controlled. For a controlled voltage attenuator the multiplying d.a.c. model has been used to ensure the correct compensation of the practical multiplying d.a.c./opamp system.
Keywords :
digital-analogue conversion; equivalent circuits; ladder networks; R-2R ladder network; equivalent circuit; multiplying digital to analogue convertor; resistance; sources; voltage attenuator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800660