275 Ultra Low Noise Pre-amplifier Module

  • 275 modular ultra low noise pre-amplifier unit

This module features an input shorting switch to avoid damage to the detector during connection and a constant current biasing circuit allowing the precise setting of bias current, recommended by the detector manufacturer.

 Core benefits


  • Single width module housed within the 417/417T unit
  • Single input fixed gain amplifier
  • Adjustable bias current
  • Input shorting switch


Short circuit input noise <1nV/Hz½ at 1kHz
Voltage gain 500
Bandwidth (-3dB) 5Hz to >100kHz
Slew rate 11V/ms
Bias current 5- 50mA
Bias current compliance voltage 10V
Maximum output ±10V

Interface & Mechanical

Interface Front Panel
Panel Controlled Features Bias current set, input short, bias on
Dimensions Single width module, 3U high
Connector BNC

Ordering Information

S200_275 275 ultra-low noise pre-amplifier module

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