5
Keysight N2893A 100 MHz Current Probe
User’s Guide
Introduction
The N2893A is a wide-band, DC to 100 MHz, active current probe. The probe features low
noise and low circuit insertion loss. The probe has the following operating regions that
provide a wide, flat frequency response.
- In the DC to low frequency AC region, the probe operation is based on the negative
feedback system that includes the thin film Hall element as a detector.
- In the high frequency region, the probe operates as a current transformer.
The N2893A is ideal for acquiring high transient time signals such as those found in motor
controllers, in switching power supplies, and in current amplifiers driving inductive loads.
The probe connects to the InfiniiVision and Infiniium oscilloscopes with 1 M
Ω
AutoProbe
interface. The oscilloscope’s AutoProbe interface provides the probe power, probe offset,
and auto configuration of probe type and attenuation setting thereby making the current
measurements as simple as those made with active voltage probes.
To use this probe effectively and to ensure a long operational life, read this user’s guide
carefully and retain it for future reference.
Features
- Highly accurate current detection
- Split-core construction allows an easy circuit connection
- Wide bandwidth - DC to 100 MHz
- Connects directly to InfiniiVision and Infiniium oscilloscopes with 1 M
Ω
AutoProbe
interface
- Auto degauss and offset elimination
- Auto activation of the built-in safety feature if the input current exceeds the rated
continuous maximum to prevent damage resulting from overloading.
Scope Compatibility
- 3000 X-Series oscilloscopes
- 5000, 6000 (except 100 MHz models), and 7000 Series oscilloscopes with software
version 6.10 or higher
- 9000A Series with software version 3.0 or higher
- 90000 X-Series with the N5449A adapter
