PSRR / PSNR / PSMR — Line Injectors

Measure power-supply rejection — how well your regulator or reference rejects noise on its input rail. Our most popular measurement, with injectors to match every power level.

Works with any VNA. Buy the parts you need below, or request a quote for the full setup.

What you need to make this measurement
VNAAny VNA — measures rejection vs frequency
CoreJ2120A Line Injector — low-to-medium-power line injector — the standard, most popular choice
OptionalJ2121A High-Power Line Injector — for higher-power rails and input-impedance testing
OptionalJ2123A Negative-Voltage Injector — for negative rails
OptionalP2124A GaN Line Modulator (water-cooled) — highest power & bandwidth in a probe form; QSFP transceiver noise-immunity compatible

Not sure what you need? Build your setup & get a quote →