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SIM914 350 MHz Preamplifier

  • DC to 350 MHz bandwidth
  • Two independent amplifier channels
  • Voltage gain of 5 (14 dB) per channel
  • 6.4 nV/√Hz input noise
  • 3 ns overload recovery
  • Excellent phase linearity
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Specifiations

The SIM914 dual channel 350 MHz preamplifier contains two wide bandwidth, DC coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise, and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.

The gain stages on the SIM914 can be cascaded multiple times without creating oscillation problems. Input clamping gives a 3 ns recovery time from a 10x overload.

A wide bandwidth and 50 Ω input and output impedance ensure a linear phase response across the entire frequency range, preserving pulse shapes.
Rear Panel


SIM914 Specifications

Amplifier channels 2
Inputs, outputs 50 Ω, DC coupled
Bandwidth DC to 350 MHz (1 ns rise/fall time)
Voltage gain 5 per channel (14 dB)
Input noise 6.4 nV/√Hz (typ.)
Operating range ±200 mV (inputs), ±1 V (outputs)
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/M SIM interface
Power Powered by SIM900 Mainframe, or a user-provided DC power supply (+5 V)
Weight, dimensions 1.4 lbs., 1.5" × 3.6" × 7.0" (WHD)
Warranty One year parts and labour on defects in materials and workmanship