Abstract: A method and device for determining the ratio between the actual value of an RC time constant of an RC network embodied in an integrated circuit and a set value of the RC time constant includes first and second reference RC networks each having a resistor and a capacitor. The two RC networks may be oppositely connected in a circuit arrangement between first and second supply potentials, where the product of the resistance and capacitance values of the two RC networks may be equal. A normalized RC time constant may be defined for the two reference RC networks. Successive charge and discharge cycles are implemented during a predetermined evaluation period, the two capacitors being charged in a cycle during a charge time until the potential at a first node of the first reference RC network approximately corresponds to the potential at a second node of the second reference RC network. The two capacitors may be subsequently discharged for a discharge time.

Abstract: The invention relates to a method and a device for determining the ratio of the RC time constant of at least one RC element in an integrated circuit to a preset value, using a first reference RC element with a first resistor and a first capacitor, and a second reference RC element with a second resistor and a second capacitor, which elements are oppositely connected between a first and a second supply potential, wherein the product of the resistance value and the capacitance value of the two elements is equal in each case.

Abstract: Circuit arrangement for evaluating an information signal and a method for adjusting a circuit arrangement of this type.