A1 amplifier module
For ease of use and flexibility in laboratory, prototyping, and bench top situations, ET Enterprises offers a stand-alone, inverting, FET input transimpedance amplifier. It is mounted in a small metal case with convenient BNC connectors for input and output.
A rotary switch enables the selection of four current-to- voltage conversion-gain ranges. The power requirements are +15 V and -15 V at 100 mA.
For high bandwidth amplification it is recommended that the cable length between the photomultiplier anode and amplifier input is kept to a minimum; this is to reduce noise.
Specification
| Range | mV/uA | Rise Time | Bandwidth |
| A | 1 | 20 ns | 17.5 MHz |
| B | 10 | 200 ns | 1.45 MHz |
| C | 100 | 2 µs | 175 kHz |
| D | 1000 | 20 µs | 17.5 kHz |
| noise | 1 mV p-p (range D) | ||
| output | 10 V max into 1 kΩ | ||
| 5 V max into 50 Ω | |||
| power requirements |
+15 V at 100 mA -15 V at 100 mA |
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* mumetal is a registered trademark of Magnetic Shield Corporation
