Agilent Oscilloscope Probe Selection Guide
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's a wide selection of high-quality probes and accessories for your Agilent oscilloscope.
| Passive probes: most common type of probe, rugged and economical with bandwidth generally lower than 600 MHz. There are no active components such as transistors or amplifiers in the probe and therefore passive probes do not need to be powered. |
10070D
N2862B
N2871A
N2863B
N2872A
N2889A
N2873A
N2890A
10073C
1165A
N2874A
N2875A
N2876A
N2870A |
1:1, 20 MHz with probe ID
10:1, 150 MHz
10:1, 200 MHz with probe ID
10:1, 300 MHz
10:1, 350 MHz with probe ID
10:1, 350 MHz
10:1, 500 MHz with probe ID
10:1, 500 MHz
10:1, 500 MHz with probe ID (standard with all 7000 Series scopes)
10:1, 600 MHz with probe ID
10:1, 1.5 GHz with probe ID
20:1, 500 MHz with probe ID
100:1, 1.5 GHz with probe ID
100:1, 1.5 GHz with probe ID |
| High voltage passive probe: view
up to 30 kVDC + peak AC voltage referenced to earth ground |
10076B
N2771B |
100:1, 4 kV, 250 MHz probe with ID
1000:1, 30 kV, 50 MHz probe |
| Single-ended active probes: Differ from the passive probes because the probe tip contains a small active amplifier built into the probe body near the probe tip so that the probe input capacitance can be kept very small, 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. |
N2795A
1156A
N2796A
1157A
1158A | 10:1, 1.0 GHz AutoProbe interface, 1 MΩ input Z
10:1, 1.5 GHz AutoProbe interface, 100 KΩ input Z
10:1, 2.0 GHz AutoProbe interface, 1 MΩ input Z
10:1, 2.5 GHz AutoProbe interface, 100 KΩ input Z
10:1, 4.0 GHz AutoProbe interface, 100 KΩ input Z |
| Active differential probes: A "differential" probe is an active probe which has two inputs, one positive and one negative as well as a separate ground lead; it drives a single terminated 50Ω 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. |
1130A1
1131A1
1132A1
1134A1
1141A
1153A2
1168A1,2
1169A1,2
N2792A
N2790A
N2791A
N2891A
N2793A |
10:1, 1.5 GHz, InfiniiMax amplifier
10:1, 3.5 GHz, InfiniiMax amplifier
10:1, 5.0 GHz, InfiniiMax amplifier
10:1, 7.0 GHz, InfiniiMax amplifier
1:1, 200 MHz, 200 VDC + peak AC max (requires 1142A power supply)
1:1, 200 MHz, 200 VDC + peak AC (Not compatible with 1000, 3000, 5000, 6000, and 7000 Series)
3.45:1, 10 GHz, 30 V
3.45:1, 13 GHz, 30 V
10:1, 200 MHz, 60 V
50:1 / 500:1, 100 MHz, 1,400 VDC + peak AC
10:1 / 100:1, 25 MHz, 700 V
100:1 / 1000:1, 70 MHz, 7000 VDC + peak AC max
10:1, 800 MHz, 30 V |
1 Requires one or more InfiniiMax probe heads – E2675A, E2668A,
E2669A
2 Not compatible with 1000, 2000X, 3000X, 5000, 6000, and 7000 Series oscilloscopes. |
| Current probes sense the current flowing through a conductor and convert it to a voltage that can be viewed and measured on an oscilloscope. Agilent 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 100 MHz are available. |
| Current Probe Characteristics |
| Model |
Probe type |
Probe Bandwidth
(-3 dB) |
Max input current |
Applications and use |
Oscilloscope compatibility |
| 1146A1 |
AC/DC current,
0.1 V/A (0.1 A-10 A peak) or
0.01 V/A (1-100 A peak) |
100 kHz |
100 A rms |
AC line, motors, automotive current measurement
(requires 9 V battery) |
High impedance BNC input |
| 1147A3 |
AC/DC current,
0.1 V/A |
50 MHz |
15 A rms continuous
30A peak non-continuous |
Motors, switching power, magnetic device current measurements |
High impedance AutoProbe input |
| N2780B1,2
| AC/DC current,
0.01 V/A |
2 MHz |
500 A rms continuous
700 A peak
non-continuous
|
Motors, switching power supplies, line currents |
High-impedance BNC input |
| N2781B2 |
AC/DC current
0.01 V/A |
10 MHz |
150 A rms continuous
300 A peak
non-continuous |
Motors, switching power supplies, transformers |
High-impedance BNC input |
| N2782B2 |
AC/DC current,
0.1 V/A |
50 MHz |
30 A rms continuous
50 A peak
non-continuous |
Switching power supplies, amplifiers, magnetic devices |
High-impedance BNC input |
| N2783B3
| AC/DC current,
0.1 V/A |
100 MHz |
30 A rms continuous
50 A peak
non-continuous |
Switching power supplies, low current measurements |
High-impedance BNC input |
1 To use the 1146A or N2780B Series current probe with Infiniium 80000, 90000, or 5485xA Series scope, order E2697A 1-MΩ high-impedance adapter.
2 Requires N2779A 3-channel power supply.
3 Compatible with 3000X, 5000, 6000 (300MHz-1GHz), 7000, 9000, 90000X Series only. Use N5449A for use with 90000X. |
Additional information
• Agilent Oscilloscope Probes and Accessories - Selection Guide (pdf, 1.4M) >>
• InfiniiVision Probes and Accessories - Selection Guide Data Sheet (pdf, 1.0M) >>
• 8 Hints for Better Scope Probing - Application Note (pdf, 1.6M) >>
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