KEYSIGHT 示波器探棒 Probe

Power Rail Probes

Measure Output Ripple with High-Sensitivity

Engineers often use 1:1 passive probes for the sensitivity required to measure the output ripple of DC supplies. But 1:1 passive probes have limited bandwidth (typically less than 35 MHz) and no DC offset capability. A Keysight power rail probe can measure noise, output ripple, and transients on DC power supplies with high sensitivity (millivolts), large DC offsets, and high bandwidth.


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Power Rail Probes
Model Bandwidth Input Range Probe Offset Input Impedance Attenuation Ratio Probe-to-scope Interface
N7020A 2 GHz ±850 mV1 ±24 V 50 kΩ 1.1:1 AutoProbe1
N7024A 6 GHz ±600 mV1 ±15 V 50 kΩ 1.3:1 AutoProbe1
  1. Measurement range about offset level. 
Oscilloscope Compatibility for Power Rail Probes
Model  Compatible Oscilloscopes
N7020A
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series oscilloscopes.
  • Infiniium EXR, MXR, S-Series, and 9000 Series oscilloscopes.
N7024A
  • Infiniium EXR, MXR, S-Series, 9000 Series, and 90000A Series oscilloscopes.
  • Infiniium UXR-Series, V-Series, Z-Series, 90000Q Series, and 90000X Series with the use of the N5442A adapter.

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes