An operational amplifier's output has a white noise density of
PHYSICS · Multi-part · Fermi University Physics · Electronics, Instrumentation & Communication · Feedback, operational amplifiers and analogue signal processing · Feedback, operational amplifiers and analogue signal processing
Electronics for Measurement, Ch Noise and the signal-to-noise ratio
Problem
An operational amplifier's output has a white noise density of 8nV/Hz. It drives a first-order low-pass filter with corner frequency fc=2.0kHz.
((a)) Calculate the noise-equivalent bandwidth of this filter.
((b)) Calculate the rms noise voltage passed by the filter.