N2780A Series AC/DC Current Probes A wide selection of current probes to meet your application's needs Data Sheet Hybrid technology for AC and DC measurements Using hybrid technology that includes a Hall-effect sensor and an AC current transformer, the probes provide accurate measurement of DC or AC currents up to 500 Arms (for model N2780A) or DC–100 MHz (for model N2783A), without breaking into the circuit. Using split core construction, the probe easily clips on and off of a conductor. Wide range of applications Figure 1 N2780A Series current probes with N2779A power supply • Various bandwidths: DC to 2 MHz, 10 MHz, 50 MHz, 100 MHz • DC and AC measurements • Superior 1% accuracy and high signal-to-noise ratio • Overload-protect function prevents probe damage from excessive input • Direct connection to high-impedance 1 MΩ BNC input of oscilloscope • “Demagnetize” button to remove any residual magnetism that builds up in the magnetic core • External power supply (N2779A) lets you connect up to three N278xA current probes to a single power supply Compatible with any oscilloscope with a high-impedance BNC input, the new N2780A Series current probes offer accurate and reliable solution for measuring DC and AC currents. The current probes feature broad measurement ranges (up to 500 A), flat frequency response, low noise and low insertion loss that make the probes ideal for current measurements in areas such as measuring steady state or transient current of motor drives, switching power supplies, inverters, controllers, sensors, disk drives, LCD displays, electronic ballasts and amplifiers. The high signal-to-noise ratio of the N2782A and N2783A makes them ideal for making low-level current measurements in milliampere ranges. Accurate current measurement A built-in DEMAG (demagnetize) function allows the removal of any residual magnetism that has built up in the magnetic core due to power on/off switching or excessive input current. In addition, voltage offset or temperature drift on the probe can be easily corrected by using the zero adjustment control. Figure 2 N2783A, N2780A, N2781A and N2782A current probe (from left to right) -10 Maximum input current (Arms) 35 Amplitude (dB) -20 -30 -40 -50 -60 30 25 20 15 10 5 1 10k 100 1M 10 100M 100 1k 10k Figure 3 Frequency response of N2783A 1M 10M 12 9 Deviation (%) 1 100m 10m 6 3 0 -3 -6 0.001 1m 0.01 0.1 1 10 Input Current (A) 100 1k 10k 100k 1M 10M 100M AC 50 Hz Frequency (Hz) Figure 5 Insertion impedance of N2783A DC Figure 6. Amplitude accuracy characteristics of N2783A Note: For the characteristic plots of other current probe models, refer to the N2780A Series current probe user’s manual. N2779A 3-channel power supply specifications Applicable current probes: Number of power supply connectors: Connector type: Output voltage: Maximum rated power: Input power requirement: 2 100M Figure 4 Continuous maximum input rating of N2783A 10 Input Impedance (ohm) 100k Frequency (Hz) Frequency (Hz) N2780A, N2781A, N2782A, N2783A and N2774A 3 LEMO inc./FFA..0S.304.CNAC42Z DC (12 V, 2.5 A) 170 VA AC 100-240 VAC, 50/60 Hz, 125-170 VAC 100 Model number N2780A N2781A N2782A N2783A Bandwidth (-3dB) Risetime Maximum current (continuous) RMS Maximum peak current (non-continuous) Lowest measurable current (at ±3% accuracy at DC, scope set to 1 mV/div and high-resolution mode on) Output voltage rate Amplitude accuracy* (DC and 45 to 66 Hz, rated current) Noise (measured with 20 MHz bandwidth limit filter on the scope) Temperature coefficient for sensitivity (within a range of 0°C to 40 °C or 32 °F to 104 °F) Effect of external magnetic fields (in a DC to 60 Hz, 400 A/m magnetic field) Maximum rated power DC to 2 MHz 175 ns or less 500 A 700 A peak 20 mA DC to 10 MHz 35 ns or less 150 A 300 A peak; 20 mA DC to 50 MHz 7 ns or less 30 A 50 A peak 5 mA DC to 100 MHz 3.5 ns or less 30 A 50 A peak 5 mA 0.01 V/A (100:1) ±1.0% rdg. ± 500 mA Equivalent to 25 mArms or less ±2% or less 0.01 V/A (100:1) ±1.0% rdg. ± 100 mA Equivalent to 25 mArms or less ±2% or less 0.1 V/A (10:1) ±1.0% rdg. ± 10 mA Equivalent to 2.5 mArms or less ±2% or less 0.1 V/A (10:1) ±1.0% rdg. ± 10 mA Equivalent to 2.5 mArms or less ±2% or less Equivalent to a maximum of 800 mA Equivalent to a maximum of 150 mA Equivalent to a maximum of 20 mA Equivalent to a maximum of 5 mA 7.2 VA (with rated current) DC ±12 V ±0.5 V 20 mm dia. (0.79” dia.) Sensor cable: Approx. 2 m (78.7”) Power supply cable: Approx. 1 m (39.4”) 5.5 VA (with rated current) DC ±12 V ±1 V 20 mm dia. (0.79” dia.) Sensor cable: Approx. 2 m (78.7”) Power supply cable: Approx. 1 m (39.4”) 5.6 VA (with rated current) DC ±12 V ±0.5 V 5 mm dia. (0.2” dia.) Sensor cable: Approx. 1.5 m (78.7”) Power supply cable: Approx. 1 m (39.4”) 5.3 VA (with rated current) DC ±12 V ±0.5 V 5 mm dia. (0.2” dia.) Sensor cable: Approx. 1.5 m (78.7”) Power supply cable: Approx. 1 m (39.4”) Rated supply voltage Diameter of measurable conductors Cable lengths Note*: The amplitude accuracy specifications are guaranteed at 23°C ± 3°C (or 73°F ± 5°F) Compatible Oscilloscopes Ordering Information Any oscilloscope offering 1 MΩ BNC input including Agilent 1000 Series, InfiniiVision 6000 and 7000 Series, and Infiniium 8000 and 9000 Series. You must select the input impedance of the oscilloscope to be 1 MΩ in order to make accurate measurements. If the oscilloscope you are using does not have a 1 MΩ input impedance setting, you can purchase the Agilent E2697A 50Ω to 1 MΩ adapter. N2780A 2 MHz/500A AC/DC current probe N2781A 10 MHz/150A AC/DC current probe N2782A 50 MHz/30A AC/DC current probe N2783A 100 MHz/30A AC/DC current probe N2779A 3-channel power supply for N2780A Series current probes 3 Remove all doubt Agilent Email Updates www.agilent.com/find/emailupdates Get the latest information on the products and applications you select. Agilent Direct www.agilent.com/find/agilentdirect Quickly choose and use your test equipment solutions with confidence. www.lxistandard.org LXI is the LAN-based successor to GPIB, providing faster, more efficient connectivity. Agilent is a founding member of the LXI consortium. Our repair and calibration services will get your equipment back to you, performing like new, when promised. You will get full value out of your Agilent equipment throughout its lifetime. Your equipment will be serviced by Agilent-trained technicians using the latest factory calibration procedures, automated repair diagnostics and genuine parts. You will always have the utmost confidence in your measurements. For information regarding self maintenance of this product, please contact your Agilent office. Agilent offers a wide range of additional expert test and measurement services for your equipment, including initial start-up assistance, onsite education and training, as well as design, system integration, and project management. For more information on repair and calibration services, go to: www.agilent.com/find/removealldoubt www.agilent.com www.agilent.com/find/probes For more information on Agilent Technologies’ products, applications or services, please contact your local Agilent office. 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