Low noise AC amplifier - NF circuit -Macnica

Product Summary

This product is a low-noise AC amplifier that can be used for noise evaluation of DC power output and DC signal in board design. It is possible to amplify and observe uV-order noise and minute signals superimposed on a maximum 40V DC signal. Since it is equipped with a unique circuit that achieves both low noise performance and input protection, it is possible to apply a large DC voltage even though it is a low noise amplifier that can measure minute signals.

Product Appearance / Product Features

■ Product features

・Single wire ground input

・Up to ±40V DC can be applied

・Low noise characteristics: 2nV√Hz (1KHz)

・High gain ・Wideband: 60dB, 1Hz-3MHz

・LPF: 10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz, THRU

Low noise AC amplifier measurement block

Low noise waveforms can be checked by connecting this product as shown below. The figure below is an example of when a DC power supply (output 24 V) is amplified with this product and the output noise waveform is observed with an oscilloscope.