Decoupling capacitors are essential components in electronic circuits, used to prevent unwanted interactions between different parts of the circuit. They work by providing a low-impedance path to ground for high-frequency noise, effectively isolating different sections of the circuit from each other.
Choosing the right decoupling capacitor is crucial for ensuring the stability and performance of the circuit. The capacitance value, voltage rating, and equivalent series resistance (ESR) of the capacitor must be carefully considered to meet the specific requirements of the circuit.