AP033 is a wide band differential active probe. The probe features low noise, low input capacitance, high common mode rejection, and FET-buffered inputs in the probe head. User selectable attenuation and offset give the probe flexibility to measure a large range of signal amplitudes. Plug-on attenuator and AC coupling accessories further extend the application range. Interconnect accessories included allow connection to surface mount and through hole components with minimal signal degradation. The input receptacles in the probe head are compatible with standard 0.025" (0.635mm) square pins, providing a convenient low-cost method of creating device characterization test fixtures. The probe is powered directly from a Teledyne LeCroy oscilloscope through the ProBus® interface. The ProBus interface also allows local control of the probe through the oscilloscope user interface and remote control through the interface buses, (GPIB, RS232).