Джерела стабільного струму для багаторозрядних АЦП і ЦАП

Abstract

In this article authors analyze schemes of thermo-stable two-polar constant current sources also identifie their advantages and disadvantages. The proposed methods allow obtaining the thermo-stable current and reference voltage in wide ranges. The authors give analytical expressions which describing the operation of the proposed schemes and demonstrate the possibility of obtaining a low temperature drift. Result of calculations based on the analytical expressions is confirmed by computer simulation.