Current distribution arrangement for realizing a plurality of currents having a specific very accurately defined ratio relative to each other

Abstract From the Canadian patent

A precision current distribution arrangement which includes a multiple current source which supplies q approximately identical currents. These currents are separately applied to one of the q input terminals of a coupling circuit with p output terminals. With the aid of for example shift registers these q currents are transferred to the p outputs in a cyclically permuting fashion in such a way that at each output during each time interval of the cycle always the same number of currents is transferred, so that per cycle each of the input currents is transferred an equal number of times to a specific output terminal. By subjecting the currents at these output terminals to a low-pass filter …