J2123A Negative Voltage PSRR Injector
J2123A
The J2123A negative voltage line injector, like the J2120A positive voltage line injector, is used to superimpose an AC modulation signal on a DC source voltage for Power Supply Rejection Ratio (PSRR), Power Supply Modulation Ratio (PSMR), and Audio Amplifier Common-Mode Rejection Ratio (CMRR) testing. These applications require very low output noise, as well as a low output impedance over a wide bandwidth.
Key Features
- Negative voltage line injector
- Modulate a DC Power Source Voltage
- Combines modulation signal with bus voltage
- 10Hz-50MHz usable bandwidth
- Low Impedance, Low Noise, and Low Voltage-Compliance
- 3 Amps maximum current
- -30VDC max input
- Easily measure input filters and PSRR
Detailed Specifications
| Characteristic | Rating |
| Maximum DC Input Voltage | 30VDC |
| Maximum Continuous Current | 3A |
| Maximum Voltage Drop | 3VDC |
| 3dB Frequency Response | 20Hz-20MHz |
| Useable Frequency Response | 10Hz-50MHz |
| Recommended Injection Signal | -20dBm-10dBm |
| Temperature Range | 0-50°C |
| Maximum Altitude | 6000 Ft |
