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The LCA-B series of low-noise, low-cost current amplifiers from Femto Messetechnik is available from Laser Components for OEM applications such as pre-amplifiers for oscilloscopes, analogue-to-digital converters, STM and photodiode amplifiers.

The amplifier has a fully shielded circuit design and is available in four off-the-shelf versions with the option of customisation.

The series has been optimised as an OEM unit that is suitable as a high-volume product with the option to build into a multi-channel unit.

Key features and specifications

  • SMA input and output connectors with BNC adapter
  • Remote control gain/low pass
  • Screw or plug-in terminals for power supply and digital control
  • Mounting holes to affix the board
  • Compact size: 70 x 56 x 16mm
  • Gain from 106V/A up to 1,010V/A with each unit switchable over two gain stages
  • Bandwidth: DC…2MHz
  • Input noise: minimum 7fA/Hz
  • Switchable low-pass filter for low-noise measurement

Laser Components

The Laser Components Group was formed in 1986 and is located at six locations in Germany, France, UK, Canada and USA, employing more than 120 people worldwide. In-house production accounts for approximately half its turnover, with partner suppliers accounting for all other business.

Laser Components manufactures and supplies components, OEM modules, sources, optics and detectors, spanning the UV to the FIR. 

Products include:  

  • Photodiodes, including avalanche photodiodes, position sensitive detectors and PIN diodes
  • IR components, including IR detectors, IR emitters and optical components for IR
  • Single photon-counting modules, including accessories and silicon avalanche photodiodes for photon counting
  • Lasers, including laser diodes, laser modules and emitters for telecommunication
  • Measurement devices, including amplifiers, laser power detectors, and measurement instruments
  • Fibre optics, including optical fibres, assembled fibres, active and passive components and accessories
  • Optics, including laser optics, optical filters, optomechanical components, optical components and polarisers
  • Laser accessories, including laser safety products and spare parts and accessories
  • E-beam (physical vapour deposition) ion-assisted deposition and sputtering coating capabilities to the standard catalogue or customer-specific specifications.  

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