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Active Differential Probes (InfiniiMode)

InfiniiMode compatible probes allow convenient measurements of differential, single ended, and common mode signals with a single probe tip without reconnecting the probe to change the connection. They are compatible with the Infiniium oscilloscope's AutoProbe interface, which completely configures the Infiniium series of oscilloscopes for the probes.

Model Type Interface Bandwidth Attenuation Input Z Differential Dynamic Range
N2750A InfiniiMode
Active Differential		 AutoProbe 1 1.5 GHz 2:1 or 10:1 200 kΩ,
700 fF		 ±1V, 2Vpp (at 2:1)
±5V, 10Vpp (at 10:1)
N2751A InfiniiMode
Active Differential		 AutoProbe 1 3.5 GHz 2:1 or 10:1 200 kΩ,
700 fF		 ±1V, 2Vpp (at 2:1)
±5V, 10Vpp (at 10:1)
N2752A InfiniiMode
Active Differential		 AutoProbe 1 6 GHz 2:1 or 10:1 200 kΩ,
700 fF		 ±1V, 2Vpp (at 2:1)
±5V, 10Vpp (at 10:1)

Active Differential Probes

InfiniiMax probes provide a versatile probing solution for both single-ended active and differential probing. InfiniiMax probes consist of the probe amplifiers listed below and a large assortment of probing heads that attach to the probe amplifiers. All InfiniiMax probes connect to the oscilloscope using an AutoProbe interface.

Model Type Interface Bandwidth Attenuation Input Z Differential Dynamic Range
1130/1/2/4B Active Differential
InfiniiMax I		 AutoProbe 1 1.5 GHz (1130B)
3.5 GHz (1131B)
5 GHz (1132B)
7 GHz (1134B)		 10:1 50 kΩ  ±2.5V   
N2818A Active Differential AutoProbe 1 200 MHz 10:1 1 MΩ, 3.5 pF ±20V
N2819A Active Differential AutoProbe 1 800 MHz 10:1 200 kΩ, 1 pF ±15V

High-Voltage Differential Probes

Both passive and active high-voltage probes are available. To ensure safe operation, read the user's guide before using the probe. High voltage differential probes allow for safe and accurate floating signal measurements between two voltage points where neither point is referenced to ground. Enabled by high CMRR, a high voltage differential probe simplifies the measurement challenges found in noisy, high common-mode power electronics environments.

Model Type Interface Bandwidth Attenuation Input Z Differential Dynamic Range
1141A High Voltage BNC 200 MHz 1:1 1 MΩ, 7 pF 200V (DC+peak AC)
1153A High Voltage AutoProbe 1 200 MHz 1:1 1 MΩ, 7 pF 200V (DC+peak AC)
N2790A High Voltage AutoProbe 1 100 MHz 10:1/100:1 8 MΩ, 3.5 pF ±1400V
N2791A High Voltage BNC 25 MHz 50:1/500:1 8 MΩ, 8 pF ±700V
N2792A High Voltage BNC 200 MHz 10:1 1 MΩ, 3.5 pF ±20V (differential)
±60V (common mode)
N2793A High Voltage BNC 800 MHz 10:1 200 kΩ, 1 pF ±15V (differential)
±40V (common mode)
N2804A High Voltage AutoProbe 1 300 MHz 100:1 4 MΩ, 4 pF ±300V (DC+peak AC)
N2805A High Voltage AutoProbe 1 200 MHz 50:1 4 MΩ, 4 pF ±100V (DC+peak AC)
N2891A High Voltage BNC 70 MHz 100:1/1000:1 100 MΩ, 7 pF ±7000V@1000:1
±700V@100:1

Single-Ended Active Probes

Single-ended 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.

Model Type Interface Bandwidth Attenuation Input Z Dynamic Range

1144A
Discontinued

Single-Ended Active BNC 800 MHz 10:1 1 MΩ, 2 pF ±7V
1145A
Discontinued 		Single-Ended Active BNC 750 MHz 10:1 1 MΩ, 2 pF ±6V
1155A
Discontinued 		Single-Ended Active AutoProbe 1 750 MHz 10:1 1 MΩ, 2 pF NA
1157A Single-Ended Active AutoProbe 1 2.5 GHz 10:1 100 kΩ, 0.8 pF 5 Vp-p
N2795A Single-Ended Active AutoProbe 1 1 GHz 10:1 1 MΩ, 1 pF ±8V
N2796A Single-Ended Active AutoProbe 1 2 GHz 10:1 1 MΩ, 1 pF ±8V
N2797A Single-Ended Active
Extreme Temperature		 AutoProbe 1 1.5 GHz 10:1 1 MΩ, 1 pF -8V to +8V

Passive 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.

Model Type Interface Bandwidth Attenuation Input Z Dynamic Range
1160A
Discontinued 		Passive BNC 500 MHz 10:1 10 MΩ, 9 pF 300 Vpk
1161A
Discontinued 		Passive BNC 500 MHz 10:1 10 MΩ, 10 pF 300 Vpk
1162A
Discontinued 		Passive BNC 25 MHz 1:1 1 MΩ, 50 pF 300 Vpk
1163A
Discontinued 		Passive
Resistive Divider		 BNC 1.5 MHz 10:1 50Ω 10 Vpk
1164A
Discontinued 		Passive BNC 500 MHz 10:1 10 MΩ, 10.5 pF 300 Vpk
1165A Passive BNC 600 Mhz 10:1 1 MΩ, 14 pF 300 Vpk
1171A
Discontinued 		Passive BNC 500 MHz 10:1 10 MΩ, 10 pF NA
10073D Passive BNC 500 MHz 10:1 1 MΩ, 50 pF 400 Vpk
10076A
Discontinued 		Passive
High-Voltage		 BNC 250 MHz 100:1 1 MΩ, 20 pF 4 kVpk
10076B Passive
High Voltage		 BNC 250 MHz 100:1 66.7 MΩ, ≈3 pF 4 kVpk
10076C Passive
High Voltage		 BNC 500 MHz 100:1 66.7 MΩ, ≈3 pF 3.7kVpk
10433B
Discontinued 		Passive BNC 300 MHz 10:1 10 MΩ, 10 pF 300V
10436B
Discontinued 		Passive BNC 300 MHz 10:1 10 MΩ, 11 pF NA
10437B
Discontinued 		Passive BNC 1 GHz 1:1 50Ω 5V
10439B
Discontinued 		Passive BNC NA 1:1 1 MΩ NA
10440B
Discontinued 		Passive BNC 300 MHz 100:1 10 MΩ NA
10441B
Discontinued 		Passive BNC 500 MHz 10:1 1 MΩ NA
10442B
Discontinued 		Passive BNC 1 GHz 10:1 500Ω, 1.2 pF NA
54006A Passive
Resistive Divider		 SMA 6 GHz 10:1 or 20:1 500Ω 20 Vpk
N2771A
Discontinued 		Passive
High Voltage		 BNC 50 MHz 1000:1 1 MΩ,
20 pF		 30 kVpk
N2771B Passive
High Voltage		 BNC 50 MHz 1000:1 1 MΩ, 20 pF 30 kVpk
N2870A Passive BNC 35 MHz 1:1 1 MΩ, 39 pF 55V CAT II
N2871A Passive BNC 200 MHz 10:1 10 MΩ, 9.5 pF 400V CAT I
300V CAT II
N2872A Passive BNC 350 MHz 10:1 10 MΩ, 9.5 pF 400V CAT I
300V CAT II
N2873A Passive BNC 500 MHz 10:1 10 MΩ, 9.5 pF 400V CAT I
300V CAT II
N2874A Passive
Resistive Divider		 BNC 1.5 GHz 10:1 500Ω, 2 pF 8.5 CAT I
N2875A Passive BNC 500 MHz 20:1 20 MΩ, 5.6 pF 400V CAT I
300V CAT II
N2876A Passive
Resistive Divider		 BNC 1.5 GHz 100:1 5 kΩ, 2.6 pF 21 V CAT I
N2889A Passive BNC 350 MHz 10:1/1:1 10 MΩ 300V
N2890A Passive BNC 500 MHz 10:1 10 MΩ 300V
N2894A Passive BNC 700 MHz 10:1 10 MΩ, 9.5 pF 400V CAT I
300V CAT II

Current Probes

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 100 MHz are available.

Model Type Interface Bandwidth Attenuation Dynamic Range
N7026A Current AutoProbe 1 150 MHz 1 V/A or 0.2 V/A

Maximum Continuous Current:

30ADC, 30 Arms (when powering the probe using the external power adapter)
5ADC, 5 Arms (when the external power supply is NOT used)

Maximum Non-continuous Peak Current (for Pulse Widths ~ 10μs):

40 Apeak (when powering the probe using the external power adapter)
15 Apeak (when the external power supply is NOT used)
N7040A/1A/2A Current BNC

LF (-3dB) Bandwidth

N7040A: 3.0 Hz

N7041A: 12 Hz

N7042A: 9.2 Hz

HF (-3dB) Bandwidth

N7040A: 23 MHz

N7041A: 30 MHz

N7042A: 30 MHz

 N7040A : 0.002 V/A (500:1)
N7041A : 0.01 V/A (100:1)
N7042A : 0.02 V/A (50:1)

Peak Current

N7040A: 3000A

N7041A: 600A

N7042A: 300 A

Absolute Maximum di/dt Ratings

N7040A: 100kA/μs (peak) / 1.2kA/μs (rms)

N7041A; 100kA/μs (peak) / 1.2kA/μs (rms)

N7042A: 70kA/μs (peak) / 1.2kA/μs (rms)
1146A Current BNC 100 kHz 0.1V/A or
0.01V/A		 max of: peak: 100A or
continuous: 15Arms
1146B Current BNC 100 kHz 0.1V/A or
0.01V/A		 maximum 100A dc or peak ac
1147A
Discontinued 		Current AutoProbe 1 50 MHz 0.1V/A max of: peak: 30A or
continuous: 15Apeak
1147B Current AutoProbe 1 50 MHz 0.1V/A 15A peak, 15 ADC,
10 Arms continuous,
30A peak non-continuous
N2780B Current BNC 2 MHz 0.01V/A max of: peak: 700A or
continuous: 500Arms
N2781B Current BNC 10 MHz 0.01V/A max of: peak: 300A or
continuous: 150Arms
N2782B Current BNC 50 MHz 0.1V/A max of: peak: 50A or
continuous: 30Arms
N2783B Current BNC 100 MHz 0.1V/A max of: peak: 50A or
continuous: 30Arms
N2820/1A Current AutoProbe 1 3 MHz 0.04V/A or
0.6V/A and 6V/A or
30V/A		 20,000:1, 86 dB (N2820A)
1,000:1, 60 dB (N2821A)
N2893A Current AutoProbe 1 100 MHz 0.1V/A max of: peak: 30A or
continuous: 15Arms