An op amp selection guide to help identify basic noise tradeoffs and select the best op amps for optimum noise performance is presented.
Op amp noise
Linear Technology continues to add to its portfolio of low noise op amps. This is not because the physics of noise has changed, but because low noise specifications are being combined with new features such as rail-to-rail operation, shutdown, low voltage and low power operation. Op amp noise is dependent on input stage operating current, device type (bipolar or FET) and input circuitry. This selection guide is intended to help you identify basic noise trade-offs ...