hi expert,
i intend to measure high impedance DUT ( >more than 1Mohm ) but my spectrum analyzer N9010A is 50ohm based.
wonder if i use the 41800A active probe ( high input impedance ) connect directly to N9010A and conduct the measurement, would it give me an accurate result?
thanks.
i intend to measure high impedance DUT ( >more than 1Mohm ) but my spectrum analyzer N9010A is 50ohm based.
wonder if i use the 41800A active probe ( high input impedance ) connect directly to N9010A and conduct the measurement, would it give me an accurate result?
thanks.
The 41800A active probe is one solution, assuming you are OK with using a probe to connect to your DUT. It will give accurate results. The frequency range of the 41800A, however is limited to 500 MHz.
There is another active probe, the 85024A, which covers frequency ranges from 300 kHz to 3 GHz. As is the case with the 41800A, you would have to make the connection with your DUT using the probe tip.
Both of these probes obtain their power from the Probe Power connector on the signal analyzer.
Agilent used to offer the 41802A 1 MOhm Impedance Adapter. It was essentially the impedance matching portion of the 41800A, but substituted a female BNC connector for the probe and probe cable. You would use this with your own high-impedance probes (such as those used with oscilloscopes). This product has been discontinued for a few years, however. As with the 41800A, the 41802A received its power from the Probe Power connector on the signal analyzer.
Regards -