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.

Applications:

• 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