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Lågbrus med kisel PD, 400 kHz, Free space

Artikelnr.: LCA-S-400K-SI-FS

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  • Si and InGaAs Photodiodes 
  • Wavelength Range from 400 to 1100 nm 
  • Bandwidth from DC to 400 kHz 
  • Max. Conversion Gain 10^7 V/W 
  • Min. NEP 130 fW/√Hz

400..1100nm photodiode, 6.2x10^6 V/W gain, NEP as low as 130 fW/√Hz, saturation power 1.6 µW.

Photoreceiver LCA-S-400K-SI-FS

By combining state of the art photodiodes with the proven and outstanding FEMTO LCA Current Amplifier technology we designed a new family of photoreceivers with a remarkable performance. The LCA-S-400K-SI-FS is available with a large area Si photodiode covering a spectral range from 400 to 1050 nm. The amplifier transimpedance is 10^7 V/A resulting in a maximum conversion gain of 6.2 x 10^6 V/W at 900 nm. 
Due to the low noise performance of the transimpedance amplifier the minimum NEP is as low as 130 fW/√Hz which allows for detection of optical signals in the nanoWatt range without further averaging.

Standard delivery time: 3 weeks ARO, Conditions: Ex.Works Germany unless specified

3.0 mm Ø Si PIN
Spectral Range
400 ... 1100 nm
Bandwidth (-3 dB)
DC ... 400 kHz
Rise/Fall Time (10% - 90%)
1 µs
Transimpedance Gain
1 x 10V/A
Max. Conversion Gain
6.2 x 106 V/W (@ 900 nm)
Min NEP (@ 10 kHz)
130 fW/√Hz (@ 900 nm)


Output voltage ±10 V max (@ 1 MΩ load). Offset adjustable by trimpot. Units with fiber optic input or AC coupling are optionally available. Output short-circuit protected. Threaded M4 and 8-32 mounting holes for use with standard mounting posts. Power supply ±15 V via 3-pin Lemo® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet or contact FEMTO.