High Speed Fixed Gain
Model |
3-dB Bandwidth (DC ...) | Noise Current [/√Hz] | Transimpedance (Gain) | Rise/Fall Time | Max. Source Capacitance |
|---|---|---|---|---|---|
| HCA-1M-1M | 1 MHz | 270 fA | 1 x 106V/A | 350 ns | 50 pF |
| HCA-1M-1M-C | 1 MHz | 3.5 pA | 1 x 106V/A | 350 ns | 2 nF |
| HCA-2M-1M | 2 MHz | 340 fA | 1 x 106V/A | 180 ns | 25 pF |
| HCA-2M-1M-C | 2 MHz | 3.5 pA | 1 x 106V/A | 180 ns | 1 nF |
| HCA-4M-500K | 4 MHz | 490 fA | 5 x 105V/A | 90 ns | 15 pF |
| HCA-4M-500K-C | 4 MHz | 3.5 pA | 5 x 105V/A | 90 ns | 500 pF |
| HCA-10M-100K | 10 MHz | 1.1 pA | 1 x 105V/A | 35 ns | 15 pF |
| HCA-10M-100K-C | 10 MHz | 3.5 pA | 1 x 105V/A | 35 ns | 150 pF |
| HCA-20M-100K-C | 20 MHz | 3.5 pA | 1 x 105V/A | 18 ns | 50 pF |
| HCA-40M-100K-C | 40 MHz | 3.7 pA | 1 x 105V/A | 10 ns | 30 pF |
| HCA-100M-50K-C | 100 MHz | 3.8 pA | 5 x 104V/A | 3.5 ns | 20 pF* |
| HCA-200M-20K-C | 200 MHz | 4.9 pA | 2 x 104V/A | 1.9 ns | 8 pF* |
| HCA-400M-5K-C | 400 MHz | 21 pA | 5 x 103V/A | 1 ns | 10 pF* |
Output voltage ±1.5 V, @ 50 Ω load. Offset adjustable by trimpot. Output short-circuit protected. Adjustable bias-output (-12 V ... +12 V) for biasing photodetectors. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet.
NOTE: The maximum detector capacitance listed above means that up to this value the specified 3dB-bandwidth (±15 %) is guaranteed. Larger capacitances are also possible, but will slightly influence the bandwidth and frequency response.
* For the ultra fast models HCA-100M-50K-C, HCA-200M-20K-C and HCA-400M-5K-C a reduction in bandwidth up to 25 % of the nominal values might occur if the source capacitance reaches the above noted maximum source capacitance values. Especially for these models short cables at the input and the use of low capacitance sources is of major importance.
NOTE: The maximum detector capacitance listed above means that up to this value the specified 3dB-bandwidth (±15 %) is guaranteed. Larger capacitances are also possible, but will slightly influence the bandwidth and frequency response.
* For the ultra fast models HCA-100M-50K-C, HCA-200M-20K-C and HCA-400M-5K-C a reduction in bandwidth up to 25 % of the nominal values might occur if the source capacitance reaches the above noted maximum source capacitance values. Especially for these models short cables at the input and the use of low capacitance sources is of major importance.