Title :
Root-law circuit using monolithic bipolar-transistor arrays
Author :
Barker, R.W.J. ; Hart, B.L.
Author_Institution :
University of Sheffield, Department of Electronic & Electrical Engineering, Sheffield, UK
Abstract :
Close matching in the respective parameters of bipolar transistors fabricated on the same monolithic chip facilitates the design of a circuit characterised by where I0 is the output current, I1, ¿, Im are input currents and n (¿1) is an integral number. Experimental measurements for n=2, m=3 and 1 ¿A ¿ Ir ¿ 1 mA are presented and discussed in relation to a simple theoretical error formula.
Keywords :
analogue computer circuits; bipolar transistors; monolithic integrated circuits; bipolar transistors; integrated circuits; root law circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740349
