Operatiivisvahvistin
Operatiivisvahvistin, often abbreviated as opamp, is a fundamental building block in analog electronic circuits. It is a high-gain, direct-coupled, differential voltage amplifier with a single-ended output. The name "operational" stems from its early use in analog computers to perform mathematical operations like addition, subtraction, integration, and differentiation.
An ideal opamp has infinite open-loop gain, infinite input impedance, and zero output impedance. In practice,
The opamp has two input terminals: a non-inverting input (marked with a plus sign) and an inverting
The versatility and relative simplicity of opamp circuits have made them indispensable in countless electronic devices,