Oscilloscope Probes and Accessories Introduction To get the most out of your oscilloscope, you need the right probes and accessories for your particular applications. Whether you need the high bandwidth and low loading of an active probe, an easy way to connect to surface mount ICs or a passive probe to measure high voltages, there are a wide selection of high-quality probes and accessories for your Keysight Technologies, Inc. oscilloscope.

How To Select A Probe Selecting the correct probe for your oscilloscope measurement should not be difficult. This brochure provides suggestions on how to make the best decision. Following is a list of probe parameters you need to consider when you select a probe for a given measurement. Attenuation Choose the attenuation ratio of the probe (1:1, 10:1, 100:1, 1000:1) to match the test signal amplitude to the oscilloscope’s vertical sensitivity range. Higher attenuation probe allows the measurement range of a scope to be extended, and lower attenuation probe allows for lower noise measurement....

Probe interface Most Keysight oscilloscope probes offer either a BNC type of probe interface or the AutoProbe interface. The AutoProbe interface is an intelligent communication and power link between compatible probes and the Infiniium or InfiniiVision Series oscilloscopes. The AutoProbe identifies the type of probe attached and sets up the proper input impedance, attenuation ratio, probe power, and offset range as needed. Probe tip form factor Your probe must make a reliable connection to the test point, and you may want it to grab the test point. Generally, this requires a small and light probe...

Types of ProbesPassive probes The most widely used type of oscilloscope probe is the “passive probe.” Passive probes are also the most rugged and economical. There are no active components such as transistors or amplifiers in the probe, and therefore passive probes do not need to be powered. Low-inductive ground connection for N287xA probes keeps the probe loading low to achieve high signal integrity measurements Find us at www.keysight.com Page 4

1. The N2894A provides 700 MHz system bandwidth with the 4000X and 6000X Series 1 GHz or higher bandwidth models only. Find us at www.keysight.com Page 5

Active probes contain a small, active amplifier built into the probe body near the probe tip. This arrangement makes it possible to keep the probe input capacitance very low, usually less than 2 pF. This low capacitance results in high input impedance on high frequencies. It has the best overall combination of resistive and capacitive loading. With such low loading, active probes can be used on high-impedance circuits that would be seriously loaded by passive probes. Active probes are the least intrusive of all the probes. N7020A 2 GHz power rail probe N7024A 6 GHz power rail probe N2795A/N2796A...

Differential active probes A “differential” probe is an active probe that has two inputs, one positive and one negative, as well as a separate ground lead. It drives a single-terminated 50-Q cable to transmit its output to one oscilloscope channel. The output signal is proportional to the difference between the voltages appearing at the two inputs. A differential probe is used to look at signals that are referenced to each other instead of earth ground and to look at small signals in the presence of large DC offsets or other common mode signals such as power line noise.

1. AutoProbel is compatible with: InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series (except N2830A and N2831A), Infiniium EXR, MXR, S-Series, 9o0o, and 90000A Series, Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter. 2. AutoProbe2 is compatible with: Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series, Infiniium UXR (1 mm & 1.85 mm models) with the use of the N2852A adapter, Infiniium N1000A and 86100D DCA-X with the use of the N5477A adapter (only for N2801A/02A/03A). Find us at www.keysight.com Page 8

Keysight’s InfiniiMax probing system supports a wide variety of high-speed probing applications with an extensive line-up of probe heads and accessories. Most InfiniiMax probe heads and accessories are split up into 2 groups based on input impedance architecture: RC architecture (Gen I, II, RC, and Ultra) and RCRC architecture (Gen III and III+). RC probe heads are only compatible with RC probe amplifiers; likewise, RCRC probe heads are only compatible with RCRC probe amplifiers. The following table lists all compatible RC probe heads and accessories. These are compatible with InfiniiMax Gen...

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InfiniiMode single-ended, differential and common-mode probes characteristics Model InfiniiMode probe with either socketed tip or solder-in tip allows convenient measurements of differential, SE and CM signals with a single probe. Probe head light is built-in Find us at www.keysight.com Page 11

1130B-34B, 1168B/69B InfiniiMax high-bandwidth differential probe and its probe head configurations N2793A 800-MHz, 15-V differential probe with standard accessories DP0001A 400 MHz, 2 kV differential probe with standard accessories N2791A 25-MHz, 700-V differential probe with standard accessories N2792A 200-MHz, 20-V differential probe with standard accessories Find us at www.keysight.com Page 12

Current probes sense the current flowing through a conductor and convert it to a voltage that can be viewed and measured on an oscilloscope. Keysight current probes use a hybrid technology that includes a Hall-effect sensor, which senses the DC current, and a current transformer, which senses the AC current. Using split core construction, the current probe easily clips on and off of a conductor, making it unnecessary to make an electrical connection to the circuit. Measurement bandwidths from DC to 150 MHz are available. The new N7040A/41A/42A is a family of Rogowski AC current probe for measuring...

Probe type N7026A AC/DC current, 1 V/A (high sensitivity) continuous, 30 A peak non-continuous continuous, 50 A peak non-continuous continuous, 50 A peak non-continuous continuous, 50 A peak non-continuous continuous, 40 A peak non-continuous Motors, switching power supplies, magnetic-device current measurements Switching power supplies, amplifiers, magnetic devices Automotive device measurement Motor, switching power supplies, magnetic device current measurements Switching power supplies, low current measurements Motor, switching power supplies, magnetic device current measurements, high sensitivity...