Abstract:
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Rezumat In this work a new compact scheme of a branch-current reference is proposed, composed of two cross-connected classical current mirrors: a modified Wilson mirror and a Widlar mirror. This referencesource type can be connected to a charge with grounded or connected to voltage-supply end only by a supplementary mirror branch. The first and secondorder thermal-compensation conditions are deduced. The design and the simulation results are included. The second-order thermal-compensation reference-source performances are: a reference-current maximum variation of 0.9% across a temperature range of 0 - 100°C and a „supply regulation” of 4550ppm/V.
