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

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

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
  • 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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