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OE400 series

Low Noise Preamplifier

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Characteristics


  • Input noise as low as 3 nV
  • High accuracy, low distortion, low noise
  • FET / BJT / Transformer coupled
  • Single-ended or differential signal input
Overview
OE400 series preamplifiers include OE4002 and OE4003. The OE4003 is an ultralow noise and gain tunable preamplifier with a bipolar build-in and excellent program-controlled amplification, which realize 3 nV/√Hz input noise. It can be used with outside power or OE series lock-in amplifiers to extract or enlarge a variety of weak signal. In addition to the universal models above, private custom is available. You can customize your own preamplifier module, low noise module suitable to sensor, programmable magnification, signal shaping filter, output signal and so on. For details, please leave your message or contact us directly.
Downloads

OE4002 Preamplifier with Ultrahigh Input Impedance

    ● 7 nV/√Hz input noise

    ● Magnification 10,20,50,100. Adjust manually

    ● FET input,10MΩ input impedance

    OE4002 is a preamplifier with low noise and ultra-high input impedance up to 100MΩ, which has excellent common-mode rejection. It is used with outside power or OE series lock-in amplifier. 


OE4003 Ultra-low Noise Preamplifier

    ● 3 nV/√Hz input noise

    ● Gain of 10,20,50,100

    ● Single-ended or differential input


  Input


Input impedance

10MΩ//10pF

Voltage input Mode

Single-ended or Differential

Max input voltage

70mVrms (overload)

Noise


10Hz

18.9 nV/√Hz

1kHz

7.4 nV/√Hz

10kHz

7.2 nV/√Hz

100kHz

7 nV/√Hz

Coupling

AC coupled   (0.16Hz)

C.M.R.R

100dB (100Hz)

Gain

10、20、50、100

Accuracy

2% (2Hz~100kHz)

Outputs


A

Single-ended output

B

Shielding

Max output voltage

7Vrms

Power

220V AC



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