A highly stable current or voltage source
Lloyd E. MacHattie · Journal of Physics E Scientific Instruments · 1972
A powerful iterative method of current stabilization is described which uses FETs in a chain. Zero temperature coefficient for small temperature excursions may be obtained at a certain current value characteristic of the individual transistor. By means of one or two fixed resistors very stable voltages of almost any value may be produced. Measurements on a three FET device show it to be a promising replacement for a standard cell.