Patent ID: 11940831
Assignee: INFINEON TECHNOLOGIES AG
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 21:
22. The system of claim 20, further comprising a tester configured to:
measure a first PTAT current produced by the trimmable current reference generator at a first temperature when at a first scale setting;
measure a second PTAT current produced by the trimmable current reference generator at the first temperature when at a second scale setting;
measure a third PTAT current produced by the trimmable current reference generator at a second temperature when at the first scale setting;
measure a fourth PTAT current produced by the trimmable current reference generator at the second temperature when at the second scale setting, wherein the first temperature is greater than the second temperature, and the first scale setting causes the trimmable reference current generator to produce a greater current than the second scale setting;
determining a trim setting of the trimmable reference current generator based on the measured first PTAT current, the measured second PTAT current, the measured third PTAT current, the measured fourth PTAT current and a target temperature coefficient; and
apply the determined trim setting to the trimmable reference current generator.