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Products > Injector Home > J2180A Ultra Low Noise Preamp
J2180A 0.1Hz -100MHz Ultra Low Noise Preamp
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Download the product spec sheet here. | Visit the "Support Page" for more downloads.

What's included:
J2180A 0.1Hz-100MHz Ultra Low Noise Preamp
J2170A High PSRR Power Adapter
User manual
1 Year Warranty

Model Description Price  
J2180A J2180A 0.1Hz-100MHz Ultra Low Noise Preamp
  • Product Information
  • Detailed Specifications

The J2180A low noise preamplifier provides a fixed, AC coupled 20dB gain while converting a 1 MOhm input impedance to a 50 Ohm output impedance. With a 3dB bandwidth of 0.1Hz to 100MHz, the preamplifier improves the sensitivity of oscilloscopes, network analyzers and spectrum analyzers while reducing the effective noise floor and spurious response. The preamplifier can also serve as a low frequency DC blocker for a spectrum analyzer or you can use it to connect a high input impedance oscilloscope probe to 50 Ohm equipment.

The J2180A preamplifier offers very low noise, fast 100V/uS slew rate for pulse applications and very low distortion for audio applications. A typical noise plot shows the noise is 2.4nV/rt_Hz. (See below)

  • Works with all oscilloscopes, spectrum analyzers and network analyzers
  • Active DC bias loop maintains low DC output voltage
  • High input impedance compatible with typical probes minimizes circuit loading
  • Low noise
  • Works with near field probes for EMI troubleshooting
  • Improves effective noise floor and spurious response
  • Very wide bandwidth
  • Compatible with J2170A power supply

Click here to download a PDF of the complete specifications.

Characteristic Rating  
max Vcc +/-12 V
max Icc 20 mA
Max Input Voltage 300 mVpp
Input Voltage Range +/-0.38 V
Output Voltage 3.0 Vpp
Input Impedance 1MegOhm ||10pF ohms
Output Impedance 50 ohms
Vs Power Supply Range +/-12 V
-3dB Bandwidth 0.1 – 100M Hz
Temperature Range 0-50 C
Maximum Altitude 6000 Ft