High Voltage Differential Probe 100 MHz Use the N2790A 100-MHz high-voltage differential probe to make safe and accurate floating measurements with an oscilloscope. The N2790A probe allows conventional earth-grounded Agilent (now Keysight) oscilloscopes to be used for floating signal measurements of up to 1,400 V of differential voltage and 1,000 V of common mode voltage. Thanks to its high bandwidth and excellent input-impedance characteristics, the probe can accurately measure up to 3.5 nsec of fast transient edges in modern switching power supplies. The probe is compatible with Agilent's (now Keysight) AutoProbe interface with 1 Mohm input where the probe's power is supplied by the Agilent oscilloscope's probe interface. User-selectable attenuation settings of 50:1 or 500:1 Rated to measure differential voltage up to 1,400 VDC + peak AC with high CMRR of >50 dB at 1 MHz. Overrange indicator which alerts the user when the probe input exceeds the dynamic range of the probe AutoProbe interface