SA-421F5 NF Corporation Differential Amplifier


Additional Features:

  • Frequency range: 30 Hz to 30 MHz
  • Input form: AC coupling, balanced differential input
  • Input impedance: 1MΩ ±5%(kHz)
  • CMRR: 46dB min. 1 kHz to 10 MHz
  • Input voltage noise density: 0.5nV/√Hz (100 kHz)
  • Input noise current density: 0.5nV/√Hz (100 kHz)
  • Max. output voltage: 2Vp-p min./50Ω (1 kHz to 20 MHz)
  • Output impedance: 50Ω ± 5% (100 kHz)
  • Voltage gain: 46 ± 0.5dB / 50Ω (1 kHz)

The SA-421F5 is a preamplifier for submicro-signal detection, which has been developed to assure noise reduction never before accomplished. The SA-421F5 is used to foster versatility as a sensor head amplifier or preamplifier for sensitivity improvement and noise reduction in analyzers and measurement instruments.


  • Superconducting device in quantum computers
  • MCT (Mercury Cadmium Tellurium) sensor for infrared detection
  • Squid sensor for micro-magnet detection
  • High-temperature superconducting Josephson device for microwave detection
  • Electromagnetic sensor for MRI systems
  • Photodetector such as a photo-multiplier and photo-transistor
  • Improving sensitivity of lock-in amplifiers 
More Information
ManufacturerNF Corporation
No manuals are currently available. Search all of our available manuals here.