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PDX10S-SI Si free-space photodetector
Koheron PDX10S-SI is a Si free-space photodetector with 5 kV/A transimpedance gain and 50 MHz bandwidth. With a noise-equivalent power spectral density of 4 pW/√Hz at 800 nm and up to 8 V DC output voltage, the PDX10S-SI is the perfect candidate for applications requiring high dynamic range.
235 €
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Specifications
| PDX10S-5-DC-SI | |
|---|---|
| Detector | |
| Detector type | Si PIN photodiode |
| Photodiode active diameter | 800 µm |
| Wavelength range | 320 nm to 1000 nm |
| Optical input power | 0 mW to 3 mW |
| Photodiode peak responsivity(800 nm) | 0.55 A/W |
| Transimpedance amplifier | |
| Small signal bandwidth | 0 Hz to 50 MHz at 3 dB |
| Coupling | DC |
| Transimpedance gain | 5 kV/A |
| Noise Equivalent Power(at 1 MHz) | 4 pW/√Hz |
| Output impedance | 50 Ω |
| Output voltage range | 0 V to 8 V |
| Output | SMA female connector |
| Power supplies | |
| Positive supply voltage | 10.5 V to 13 V |
| Negative supply voltage | -9 V to -4 V |
| Quiescent current per rail | 40 mA |
| Maximum current(positive supply) | 130 mA |
| Other | |
| Outside dimensions | 49 mm x 40 mm x 18 mm |
| Operating temperature | 0 °C to 50 °C |
| Weight | 26 g |
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Functional diagram
Characterization
Output power spectral density
The power spectral density of the PDX10S-5-DC-SI output was measured for different incident optical powers. Optical source is a 810 nm LED driven by a Koheron DRV110-A-375 laser driver. Power spectrum is measured using the Koheron ALPHA250 FFT analyzer.
Small signal frequency response
Small signal bandwidth is 50 MHz at 3 dB.
Noise equivalent power
The figure below shows the noise-equivalent power spectral density at a wavelength of 810 nm.
