Tektronix TriMode P7700 Series - Basic Operation; Probe Input Model; Offset Voltage

Theory of operation
Figure 7: Dynamic range versus linearity at the probe amplifier step gain settings
The size of the operating voltage window and the size of the full dynamic
range for a P7700 Series probe tip depend on the attenuation factor of the input
attenuation network at the probe tip. A larger attenuation factor usually results in
a larger operating voltage window and a larger full-size dynamic range square as
shown
for the P77BRWSR probe tip in the following figure.
P7700 Series TriMode Probes Technical Reference 15