Pre-Amplifier

Pre-amplifier
Pre-amplifier which amplifies a sensitive sensor signal from a self-sensing cantilever to avoid noise pick-up on a long cable transmission.

General Description

SCL’s low-noise and high bandwidth pre-amplifier is used to amplify a sensitive sensor signal from a self-sensing cantilever to avoid noise pick-up on a long cable transmission or to upscale the signal for further signal analyzing.

The pre-amplifier supplies a Wheatstone bridge on an arbitrary sensor (e.g. a SCL self-sensing cantilever) with a stable and low noise reference voltage. The sensed and amplified signal bridge output signal is wired to a data processing device (e.g. Lock-in amplifier, atomic force microscope controller, oscilloscope, etc.).

The pre-amplifier’s internal reference voltage amounts to 2.048 V. The bridge supply voltage can be changed to an arbitrary external supply voltage by a jumper.

The total gain of the pre-amplifier is set to G=100 with a high bandwidth of 2.5 MHz. An offset voltage in the output signal can be corrected by adding an external DC bias or manually with an onboard potentiometer

Main Specification

Dimensions (l x w x h)
pre-amp PCB (LxWxH))48 x 28 x 1.6 mm
Electrical Specifications
Operation voltage Vs+/-5…+/-15 V
Gain, voltage amplification100x
Bandwidthf3dB = 2,5 MHz @ 2mVpp sine input signal
Total offset adjustment range(Vs-) +1.4 V to (Vs+) -1.0 V
manual onboard offset range+/-5V
Connectors and cables
Input connector (Sensor side)FFC 8 Pin
Output connectorHeader Connector 8 Pin

Downloads

Order Information

  • Delivery time
    2 weeks
  • Minimum order
    € 400,-
  • Shipping charges
    EU: Regular mail, worldwide, registered: 25 €
    Worldwide: Regular mail, worldwide, registered: 35 €
  • Terms of payment
    30 days net from the date of invoice
    The delivered products stay in our property until complete payment.

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