Keysight (Agilent) DP0012A Differential Active Probe, 1 GHz

The Keysight (Agilent) DP0012A is a 1 GHz differential active probe designed to capture high-speed differential signals with minimal circuit loading. High input impedance (1.7 MΩ differential) and low input capacitance (1.5 pF) preserve signal integrity in critical measurements. The probe delivers 415 ps rise time and excellent common-mode rejection, making it essential for high-speed digital and analog characterization, motor drive analysis, automotive differential bus measurements, and power-related applications.

Auto-attenuation ranges (17:1 and 85:1) automatically scale measurement sensitivity based on oscilloscope vertical settings, while a ±60 V offset range accommodates signals across wide DC bias levels. The 1.3 meter cable and AutoProbe1 interface integrate with Keysight oscilloscopes across multiple series.

Technical Specifications

• Bandwidth: 1 GHz (-3 dB)


• Rise Time: 415 ps


• Input Impedance (Differential): 1.7 MΩ


• Series Resistance (Rse): 850 kΩ


• Input Capacitance: 1.5 pF


• Attenuation Ranges: Auto 17:1 / 85:1 (configured by vertical scale: ≤2 V/div uses 17:1; >2 V/div uses 85:1)


• Maximum Differential Measurement Range: ±42 V (±42 V peak on 85:1 attenuation)


• Probe Offset Range: ±60 V


• Cable Length: 1.3 meters


• Operating Temperature: 5°C to 40°C

Key Features

• Dual attenuation modes automatically optimize dynamic range and sensitivity


• High input impedance minimizes probe loading effects on circuit behavior


• Wide offset capability allows measurement of biased differential signals


• Includes socketed and solder-in Y-lead pairs, 90° ground lead, microcircuit hooks, and probe tip savers


• Hard plastic carrying case provided

Typical Applications

• High-speed digital bus measurements


• Motor drive and power electronics characterization


• Automotive CAN/LIN differential signaling


• Analog circuit validation in bandwidth-critical designs

Compatibility & Integration

• Interface: Keysight AutoProbe1 (power and DC offset via scope connection)


• Compatible Oscilloscopes: InfiniiVision HD3, 3000T/4000/6000 X-Series; Infiniium EXR/MXR/S-Series, UXR/V/Z/Q-Series, and 90000 X-Series