Agilent/Keysight MX0025A

The Keysight MX0025A InfiniiMax Ultra Series probe amplifier delivers 25 GHz bandwidth for high-speed signal integrity measurements on emerging technologies including DDR5 and MIPI interfaces. This probe amplifier employs RC input impedance architecture to minimize mid-band loading and circuit loading effects, enabling accurate measurements without signal distortion. The MX0025A measures differential, single-ended, and common mode signals from a single probe tip, supported by three flexible attenuation ratios and corresponding input dynamic ranges: 600 mVpp at 1:1, 2.5 Vpp at 4:1, and 5 Vpp at 8:1.

The probe amplifier extends 1346.2 mm with a 1181.1 mm cable assembly.

Technical Specifications

• Bandwidth: 25 GHz


• Input Impedance: 25 kΩ ± 2% single-ended; 50 kΩ ± 2% differential (with 25 kΩ probe heads); RC architecture for low mid-band loading


• Attenuation Ratios: 1:1, 4:1, 8:1


• Input Dynamic Ranges: 600 mVpp (1:1), 2.5 Vpp (4:1), 5 Vpp (8:1)


• Input Common Mode Range: ±8 V DC to 100 Hz; ±0.5 V @ 1:1 (>100 Hz); ±4 V @ 4:1 (>100 Hz)


• Probe Amplifier Length: 1346.2 mm (53 inches)


• Cable Length: 1181.1 mm (46.5 inches)

Key Features

• InfiniiMode capability enables differential, single-ended, and common mode signal measurement without probe reconnection


• S-parameter DSP correction for improved measurement accuracy


• User-defined AC calibration support


• AutoProbe II interface enables auto-configuration of attenuation, power, and offset settings on compatible oscilloscopes


• Supports micro probe heads for probing miniaturized devices

Compatibility & Integration The MX0025A interfaces with Infiniium UXR-, 90000 X-, Q-, V-, and Z-Series oscilloscopes. AutoProbe II connectivity provides automatic probe type recognition and instrument configuration when paired with compatible Keysight instruments.