Keysight N7026A 150MHz High Sensitivity Current Probe

1. Core Product Introduction: Technical Integration of Wide Bandwidth and High Sensitivity

Keysight N7026A is a DC to 150MHz wideband AC/DC current probe. It adopts the composite technology of Hall effect and current transformer, supports range coverage of ±30A RMS (external power supply) and ±15A RMS (oscilloscope power supply), with sensitivity up to 1V/A (high sensitivity mode) and 0.2V/A (low sensitivity mode), and can automatically switch according to the oscilloscope channel scale. Its core specifications include:

• Bandwidth: 150MHz (-3dB), meets measurement requirements of high-frequency transient signals, such as switching power supplies and motor controllers;

• Accuracy: ±1% of reading ±1mV (DC to 66Hz), noise level ≤ 250μA rms (20MHz bandwidth limit);

• Interface: AutoProbe intelligent interface, compatible with InfiniiVision/Infiniium series oscilloscopes, supports automatic 1MΩ input impedance matching;

• Safety Design: It features a built-in overheating protection circuit. When the input current exceeds the continuous range (e.g. 30A RMS) or the ambient temperature is too high, the output will be automatically cut off and a cooling reminder will be triggered.

II. Why Choose N7026A? Core Advantages Over Similar Products

In current measurement applications for industrial and scientific research fields, similar products often face the bottlenecks of "insufficient bandwidth" or "limited sensitivity".

For example, some traditional current probes experience significant response attenuation in frequency bands above 100MHz. The 150MHz broadband design of N7026A can completely capture high-frequency harmonics and transient spikes. In addition, its 1V/A high-sensitivity mode can accurately measure weak currents as low as 50μA, while most competitors have large errors in the low current range.

Compared with other models under Keysight (such as N2893A 100MHz probe), N7026A has more advantages in high-frequency scenarios:

• 50% higher bandwidth: 150MHz bandwidth is suitable for scenarios such as new energy vehicle motor drive and high-frequency power conversion;

• Flexible ranging: When powered externally, it supports ±40A peak current measurement to meet the requirements of high-current pulse tests.

3. Advantages of the Featured Model: N7026A Scenario-based Solutions

1. Accurate Analysis of High-Frequency Current Waveforms
In switching power supply R&D, the high-frequency harmonic analysis of PWM signals places strict requirements on probe bandwidth. The 150MHz frequency response of N7026A clearly presents current distortion below 100MHz, helping engineers locate EMI interference sources.

2. High-Resolution Measurement of Low-Current Signals
In sensor R&D scenarios, current fluctuations as low as milliampere level require high sensitivity support. The 1V/A mode of N7026A, matched with the 10mA / division oscilloscope scale, can capture microampere-level current changes and prevent signals from being submerged in noise.

3. Dual Optimization of Convenience and Safety

• Automatic Calibration: The AutoProbe interface supports plug-and-play without requiring manual configuration of attenuation coefficient;

• Mechanical Design: The split-core structure can directly clamp conductors with a diameter of up to 5mm, and the matching Bushing reduces measurement errors caused by conductor position deviation.

4. Application Scenarios: Full Coverage from Laboratory to Industrial Sites

• New Energy Field: current harmonic analysis of electric vehicle inverters, MPPT efficiency testing of photovoltaic inverters;

• Industrial Automation: Transient response measurement of servo motor drive current, high-frequency solenoid valve control current monitoring;

• Scientific Research and Education: Research on on-state current characteristics of semiconductor devices in university power electronics laboratories;

• Medical Equipment: Power supply current stability testing for Nuclear Magnetic Resonance (MRI) equipment.

5. Technology-Driven Selection, Professional Support Within Reach

Whether it is accurate characterization of high-frequency currents or reliability testing under complex operating conditions, the Keysight N7026A delivers wide bandwidth, high sensitivity and intelligent adaptation capabilities, providing engineers with a reliable measurement tool.

To learn more about the technical specifications of N7026A or obtain a customized measurement solution, please contact us for professional technical support.