J2180A Ultra Low Noise Amplifier
Key Features
- Works with all oscilloscopes, spectrum analyzers and network analyzers
- Compatible with the P2106A probe for ultra-low noise measurement to 2MHz
- Use high input impedance scope probes with 50 Ohm Instruments
- Active DC bias loop maintains low DC output voltage
- Better Transient Response
- High input impedance compatible with typical probes minimizes circuit loading
- Ultra-Low noise
- Works with near field probes for EMI troubleshooting
- Improves effective noise floor and spurious response
- Very wide bandwidth 0.1Hz – 100MHz (J2180A, 20Hz – 100MHz (J2180A-20)
- Compatible with (included) J2171A
What’s included
- J2180A (0.1Hz-100MHz) or J2180A-20 (20Hz-100MHz) Ultra Low Noise Preamp
- J2171A High PSRR Regulated Adapter
- User manual
- 1 Year Warranty
J2180A Ultra Low Noise Amplifier
J2180A Specifications
| Characteristic | Rating | |
|---|---|---|
| Maximum Vcc | +/-12 | V |
| Maximum Icc | 20 | mA |
| Max Operating DC Input Voltage | 50 | VDC |
| Max DC Input Surge | 60 | Vpk |
| Ac 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 |
| Gain | 20 (26 without termination) | dB |
| Gain Accuracy/Flatness | within +/- 0.5 | dB |
| Temperature Range | 0-50 | C |
| Maximum Altitude | 6000 | Ft |
| Absolute Maximum Voltage | < 50VAC and 75VDC |
J2180A-20 Specifications
| Characteristic | Rating | |
|---|---|---|
| Maximum Vcc | +/-12 | V |
| Maximum Icc | 20 | mA |
| Max Operating DC Input Voltage | 50 | VDC |
| Max DC Input Surge | 60 | Vpk |
| AC 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 | 20 – 100M | Hz |
| Gain | 20 (26 without termination) | dB |
| Gain Accuracy/Flatness | within +/- 0.5 | dB |
| Temperature Range | 0-50 | C |
| Maximum Altitude | 6000 | Ft |
| Absolute Maximum Voltage | < 50VAC and 75VDC |
| Model | Description | Price |
|---|---|---|
| J2180A | J2180A (Shielded) 0.1Hz-100MHz Ultra Low Noise Preamp | $2,495.00 Add to Cart |
| J2180A–20 | J2180A-20 20Hz-100MHz Ultra Low Noise Preamp | $1,995.00 Add to Cart |
The J2180A and J2180A-20 low noise preamplifiers provide 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 (J2180A), 20Hz to 100MHz (J2180A-20) and 10Hz to 1MHz (J2181A), the preamplifiers improve the sensitivity of oscilloscopes, network analyzers and spectrum analyzers while reducing the effective noise floor and spurious response. The J2180A-20 is lower noise than the J2180A at the cost of some low frequency bandwidth. The preamplifiers can also serve as a low frequency DC blocker for a spectrum analyzer or you can use them 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). The J2180A-20 is about 1/3rd the noise of the J2180A (as measured over a 10s timeframe, 8mVrms/J2180A vs. 2.3mVrms/J2180A-20 output referred).
