Nullpunktspannung

Nullpunktspannung is a German term used in electronics that refers to the output voltage of an operational amplifier or differential amplifier when both input terminals are connected to the same potential, typically ground. This parameter, also known as output offset voltage, represents the inherent imbalance in the amplifier circuit that causes a DC voltage to appear at the output even without any differential input signal. The Nullpunktspannung is a critical specification in precision electronic applications as it directly affects the accuracy of the circuit, especially when processing small signals. Modern amplifiers typically feature very low Nullpunktspannung values, often in the microvolt to millivolt range, achieved through internal trimming techniques or external adjustment circuits. Temperature variations can influence this parameter, making it particularly important in applications operating across wide temperature ranges. Minimizing Nullpunktspannung is essential for maintaining signal integrity and achieving optimal performance in sensitive measurement and instrumentation systems.