Referensspänning

Referensspänning, often translated as reference voltage, is a stable and precisely known voltage used as a standard for comparison in electronic circuits. It acts as a benchmark against which other voltages are measured or regulated. This stable voltage is crucial for the accurate operation of many electronic devices and systems.

The primary function of a reference voltage is to provide a constant, reliable voltage source that is minimally affected by changes in temperature, supply voltage, or other environmental factors. This stability is achieved through specialized integrated circuits called voltage references. These devices employ techniques like bandgap references or Zener diodes to maintain a highly consistent output voltage.

Referensspänning is essential in applications such as analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) where it defines the full-scale range of conversion. It is also used in voltage regulators to maintain a stable output voltage, in comparators to determine thresholds, and in measurement instruments to ensure accuracy. Without a reliable referensspänning, the precision and predictability of many electronic functions would be compromised.