Spänningsreferens

Spänningsreferens is a Swedish term that translates to "voltage reference" in English. It refers to a stable and well-defined voltage source that serves as a benchmark or reference point within an electronic circuit. This reference voltage is crucial for the accurate operation of many analog and mixed-signal electronic systems.

The primary function of a voltage reference is to provide a constant output voltage that is largely unaffected by variations in input voltage, temperature, or load conditions. This stability is essential for components like analog-to-digital converters (ADCs), digital-to-analog converters (DACs), voltage regulators, and comparators, which rely on a precise reference to perform their intended functions accurately.

Voltage references are typically implemented using specialized integrated circuits (ICs) or discrete components. Common technologies include bandgap references, Zener diodes, and buried Zener diodes. The choice of technology depends on the required accuracy, stability, power consumption, and cost for a given application.

In summary, a spänningsreferens is a fundamental building block in electronics, ensuring the precision and reliability of various measurement, control, and signal processing systems by providing a stable and accurate voltage standard.