Title :
Sampled-current circuits
Author :
Vallancourt, David ; Tsividis, Yannis P. ; Daubert, Steven J.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
A method for making practically identical copies of a sampled current without relying on the matching of circuit elements (such as capacitors or transistors) is presented. Compact circuit realizations are discussed, leading to the generation of a family of analog function blocks for the creation, copying, and manipulation of current samples, all free from dependency on element matching. Applications of these circuits include signal processors and A/D (analog-to-digital) and D/A (digital-to-analog) convertors
Keywords :
analogue-digital conversion; digital signal processing chips; digital-analogue conversion; A/D convertors; D/A convertors; analog function blocks; circuit realizations; current samples; element matching; sampled-current circuits; signal processors; Capacitors; Dynamic range; Dynamic voltage scaling; Lead; Signal processing; Signal representations; Signal sampling; Switches; Switching circuits; Variable structure systems;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100665
