LCA-400K-10M Low Noise Current Preamplifier Photodetector
Contact Info
- Add:宝安区45区鸿都商务大厦C栋505室, Zip:
- Contact: 于沈洋
- Tel:13554997271
- Email:bnd015@szbonad.com
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Why use a preamplifier module?
Unlike benchtop amplifiers, the preamplifier module provides gain close to the detector before cable capacitance and noise pickup significantly degrade the signal-to-noise ratio. After signal processing and measurement, the preamplifier has no effect on the signal and noise.
Bandwidth and Frequency Response
Femto current amplifiers exhibit ideal performance without requiring specific adjustments or frequent calibration. Bandwidth and frequency response are independent of the 10nF source capacitance. No gain peaking occurs.
Gain and Noise
To achieve extremely low noise by minimizing the associated bandwidth, a very high gain value should be selected.
Therefore, when the result involves complex errors, we can provide professional high-end current amplifiers. Our products exceed in noise performance, utilizing corresponding bandwidth-designed OpAmp current-to-voltage converters.
Applications:
1. Photodetection with PMTs and photodiodes
2. Spectroscopy
3. Scanning microscopy
4. Ionization detectors
5. Pyroelectric and piezoelectric detectors
LCA-100K-50M Current Preamplifier Features:
1. Bandwidth and frequency response independent of detector capacitance (up to 10 nF)
2. Extremely low noise, 30 fA/√Hz equivalent input noise current
3. Bandwidth DC ... 100 kHz
4. Transimpedance (gain) 5 x 10⁷ V/A
LCA Series Selection Guide:
Model | Bandwidth | Current Noise | Variable Gain | Rise/Fall Time |
LCA-2-10T | 2 Hz | 0.18 fA | 10¹² and 10¹³ V/A | 200 ms |
LCA-30-1T | 30Hz | 0.5 fA | 1 x 10¹² V/A | 12 ms |
LCA-30-200G | 30Hz | 0.5 fA | 2 x 10¹¹ V/A | 12 ms |
LCA-200-100G | 200Hz | 1.5 fA | 1 x 10¹¹ V/A | 2 ms |
LCA-200-10G | 200Hz | 1.5 fA | 1 x 10¹⁰ V/A | 2 ms |
LCA-1K-5G | 1 kHz | 3 fA | 5 x 10⁹ V/A | 400 µs |
LCA-2K-2G | 2 kHz | 4.5 fA | 2 x 10⁹ V/A | 200 µs |
LCA-4K-1G | 4 kHz | 6.5 fA | 1 x 10⁹ V/A | 100 µs |
LCA-10K-500M | 10 kHz | 10 fA | 5 x 10⁸ V/A | 40 µs |
LCA-20K-200M | 20 kHz | 14fA | 2 x 10⁸ V/A | 20 µs |
LCA-40K-100M | 40 kHz | 19 fA | 1 x 10⁸ V/A | 10 µs |
LCA-100K-50M | 100 kHz | 30 fA | 5 x 10⁷ V/A | 4 µs |
LCA-200K-20M | 200 kHz | 40 fA | 2 x 10⁷ V/A | 2 µs |
LCA-400K-10M | 400 kHz | 65 fA | 1 x 10⁷ V/A | 1 µs |
Note: Bandwidth and frequency response are completely independent of detector capacitance. Each amplifier is 100% guaranteed tested with values up to 10nF (up to 1nF for LCA-400K-10M).
| Industry Category | Electronic-Components-Supplies |
|---|---|
| Product Category | |
| Brand: | 德国FEMTO |
| Spec: | LCA-400K-10M |
| Stock: | 999 |
| Manufacturer: | |
| Origin: | China / Guangdong / Shenshi |
