NF Corporation LI-75A

LI-75A NF Corporation Preamplifier

Low Noise Preamplifier

The LI-75A is a Preamplifier from NF Corporation. Amplify RF and Microwave signals to measure, test, and design circuits. Applications include radio communications, cellphones, EMI testing, and much more.

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NF Corporation LI-75A Features:

  • Input terminal: Balanced
  • Input impedance: 100MΩ // 50pF
  • CMRR: 120dB (DC to 100Hz)
  • Input referred noise: 2nV/√Hz (at 1kHz)
  • Voltage gain: 40dB
  • Frequency response: DC to 1MHz (DC), 0.2Hz to 1MHz (AC)
  • Maximum output voltage: ± 10V/2k ohm (DC to 200kHz)
  • Power requirements: Provided by the Lock-in amplifier or PS-70A
  • Dimensions: (mm) 120(W) X 55(H) X 200(D)
  • Weight: 1.15kg

The LI-75A is a preamplifier designed to increase measurement sensitivity when using the NF Lock-in Amplifiers.