low noise ac amplifier

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

low noise ac amplifier
Product appearance drawing

■ 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.

block
noise waveform
Vertical axis: 100μV/div. Horizontal axis: 10ms/div.

Evaluation case for power supply design

Output noise waveform evaluation of DC-DC converter

DCDC converter measurement block
Measure the output noise waveform of a DC-DC converter with 5V output

Output noise evaluation and observation of power supply equipment such as linear power supply

Linear power supply block diagram
Measure the output noise waveform of a low-noise linear power supply with DC40V output

Output noise waveform evaluation of voltage amplifier

Voltage amplifier output noise waveform measurement block
Amplified output waveform of voltage amplifier

Customization example

  • Differential input
  • multi-channel
  • Applied voltage: ±80V DC
  • Bass extension: 0.1 Hz

 

*This product can be customized according to the customer's needs.

Inquiry / Quotation

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