Agilent / HP 1157A

This Active probes offers R & D engineers the performance they need to probe small geometries in hard to reach areas on the DUT.

These probes were designed specifically for the Infiniium 54800 Series oscilloscopes.

As the speeds in your design increase, you may notice more overshoot, ringing, and other perturbations when connecting an oscilloscope probe.

Probes form a resonant circuit where they connect to the device.

If this resonance is within the bandwidth of the oscilloscope probe you are using, it will be difficult to determine if the measurement perturbations are due to your circuit or the probe.