SIM914 350 MHz preamplifier by Srs Stanford Research Systems
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The SIM914 is a 350 MHz preamplifier featuring two amplifier channels designed for high-frequency signal processing. Each channel provides a voltage gain of 5, equivalent to 14 dB, with a typical input noise of 6.4 nV/√Hz and a propagation delay of 2.7 ns. The unit handles 50 Ω DC-coupled inputs with an operating range of ±200 mV and delivers 50 ±1 V DC-coupled outputs. Built for robust laboratory integration, the SIM914 includes robust input protection up to ±50 V for <1 µs, a ±1.6 V output clamp, and ±1.3 V output overload detection. It achieves a fast rise and fall time of 1 ns alongside a quick 3 ns recovery time for a 10x overload. Crosstalk is maintained at -60 dB. Front-panel connections consist of four BNC connectors, complemented by a male DB15 SIM interface for system integration within an operating temperature range of 0 °C to 40 °C.
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Characteristics
| Manufacturer | Srs Stanford Research Systems |
|---|---|
| Part number | SIM914 |
| Inner Code | 4522910 |
Technical specification
| Product type | 350 MHz preamplifier |
|---|---|
| Amplifier channels | 2 |
| Inputs | 50 Ω, DC coupled |
| Outputs | 50 Ω, DC coupled |
| Bandwidth | DC to 350 MHz |
| Rise/fall time | 1 ns |
| Voltage gain | 5 per channel (14 dB) |
| Input noise | 6.4 nV/√Hz (typ.) |
| Operating range Inputs | ±200 mV |
| Operating range Outputs | ±1 V |
| Propagation delay | 2.7 ns (typ.) |
| Recovery time | 3 ns for 10× overload |
| Input protection | ±50 V for <1 µs |
| Output clamp | ±1.6 V |
| Output overload detect | ±1.3 V |
| Crosstalk | -60 dB |
| Operating temperature | 0 °C to 40 °C (non-condensing) |
| Connectors | BNC (4 front) DB15 (male) SIM interface |