P7520A 20 GHz TriMode Probe

The Tektronix P7520A is a 20GHZ TriMode Differential Probe (P75PST solder tip and the newer DPO/DSA70KD scopes to achieve 25GHz). With Tektronix’s proprietary TriMode technology, the one-probe setup on the P7520A makes differential, single ended, and common mode measurements with complete accuracy.
Here are the technical specifications of the P7520A:
Bandwidth – >20 GHz, A-B mode, >18 GHz, other modes
Rise time (10-90%) – <27 ps, A-B mode, <29 ps, other modes; (20-80%) - <18 ps, A-B mode, <20 ps, other modes Attenuation (user selectable) - 5X or 12.5X Differential input range - -0.625 V (5X), -1.6 V (12.5X) Operating voltage window - 3.7 to -2.0 V Offset voltage range - 2.5 to -1.5 V, A-B mode, 3.4 to -1.8 V, other modes DC input resistance (differential) - 100k ohms Noise - <33 nV / vHz (5X), <48 nV / vHz (12.5X)