G05D23/1909

VOLTAGE REFERENCE CIRCUIT, INTEGRATED CIRCUIT, AND METHOD FOR GENERATING A REFERENCE VOLTAGE
20260037011 · 2026-02-05 ·

In an embodiment a voltage reference circuit includes one or more circuit components configured to generate a first voltage and a second voltage, wherein the first voltage has a first temperature coefficient and the second voltage has a second temperature coefficient that is different from the first temperature coefficient, an adjustment circuit configured to generate an adjusted voltage as product of the first voltage and an adjustment factor, wherein the adjusted voltage is designed to equal the second voltage in an equilibrium at a target temperature, a control device configured to provide a control signal based on a difference between the adjusted voltage and the second voltage, a heater device configured to generate heat in response to being controlled by the control signal, wherein the heater device is thermally coupled to the one or more circuit components thereby providing a feedback loop configured for establishing the equilibrium at the target temperature and an output terminal configured to provide a reference voltage as a function of the first voltage or the second voltage.