Agilent/Keysight DP0001A

The Keysight DP0001A is a 400 MHz high-voltage differential probe engineered for precision measurements in power electronics applications involving wide bandgap devices, power converters, and motor drives. It captures fast-edge transient pulses up to 1.2 nsec (10–90%) with minimal circuit loading, delivering 875 psec rise time and exceptional common-mode rejection in high-noise environments. The probe supports differential input voltages to 2000 Vrms (6000 V transient overvoltage) and common-mode voltages to ±2000 Vpk, with selectable attenuation ratios from 50:1 to 500:1.

AutoProbe interface integration enables automatic attenuation switching and configuration on compatible Keysight oscilloscopes.

Technical Specifications

• Bandwidth: 400 MHz (–3 dB)


• Rise Time (10%–90%): 875 psec


• Maximum Differential Input Voltage: 2000 Vrms (mains isolated), 6000 V transient overvoltage, 1000 V CAT III rating


• Maximum Common Mode Voltage: ±2000 Vpk (1400 Vrms)


• Attenuation Ratios: 50:1, 100:1, 250:1, 500:1 (auto-switchable with compatible oscilloscopes)


• Differential Input Impedance: 10 MΩ || 2 pF


• Input Impedance (each input to ground): 5 MΩ || 4 pF


• DC Gain Accuracy: ±0.7% or ±0.35% (attenuation-dependent)


• CMRR Performance: >90 dB DC to >10 MHz; >80 dB at DC (500:1 mode); >70 dB to 400 MHz (500:1 mode)


• Noise (Vrms): 55 mV (50:1 & 100:1); 75 mV (250:1 & 500:1)


• Offset Drift: 150 μV/°C or 40 μV/°C (attenuation-dependent)


• Cable Length: 70 cm


• Operating Temperature Range: –40 to +85 °C


• Safety Certification: UL certified, CAT III (1000 V)

Key Features

• Measures 1 kV transient pulses with edge speeds as fast as 1.2 nsec (10–90%)


• Low input capacitance (2 pF) minimizes circuit loading


• Flat frequency response ensures signal fidelity across the 400 MHz bandwidth


• LED overload indicator for overvoltage protection awareness


• AutoProbe I interface for direct integration with compatible Keysight oscilloscopes

Typical Applications

• Wide bandgap power device characterization


• Power converter efficiency and transient analysis


• Motor drive switching dynamics


• High-voltage, high-noise measurement environments

Compatibility & Integration The DP0001A connects via AutoProbe I interface to Keysight InfiniiVision 3000TX, 4000X, and 6000X Series oscilloscopes; Infiniium S, 9000A, 90000X, V, and Z Series; and Infiniium UXR models ≤33 GHz (with N5442A adapter). Automatic probe detection and attenuation configuration eliminate manual setup.