Keysight Probing Solutions

Probe Types

Keysight offers a broad range of voltage, current, and optical probing solutions for InfiniiVision and Infiniium Series oscilloscopes. Select from the probe categories listed below to see what Keysight has to offer.

Hi-Z+ Probes

Passive Probes

High-Frequency Differential Active Probes < 10 GHz

High-Frequency Differential Active Probes ≥ 10 GHz

High-Voltage Differential Active Probes

Single-Ended Active Probes

Power Rail Probes

Current Probes

Optical Probes

Related Resources

InfiniiVision Oscilloscope Probes and Accessories

Infiniium Oscilloscope Probes and Accessories

DCA Accessories N1027A Kits and General-Purpose Parts

Probe Resource Center

Hi-Z+ PASSIVE PROBING SYSTEM

Keysight offers a family of single-ended passive probes offers the performance expected of an active probe with the usability expected from a passive probe. The Hi-Z+ probes support higher input voltages and support for simplified probing of MMCX connectors. All three of these probes leverage the PP0004A Hi-Z+ Adapter to interface with our current generation oscilloscopes with AutoProbe 1 interfaces. There are also a variety of accessory kits available for extra parts or replacements.

PP000xA MMCX TPP1000 Adapter
PP000xA Hi-Z+ Probes
Model Bandwidth Input Voltage Input Impedance Tip Type
PP0001A 1 GHz
 300 V CAT II 10 MΩ // 4.0 pF
 5mm tip
PP0002A 800 MHz 1200 V CAT II
 40 MΩ // 2.0 pF 5mm tip
PP0003A 1 GHz
 30 V CAT II
 10 MΩ // 4.0 pF
 MMCX Connector

 

Passive Probes

Keysight offers a broad range of passive probes with various attenuation ratios and input impedance specifications to optimize the dynamic range and loading considerations of your oscilloscope ground-reference measurements. These passive probes are compatible with most Keysight oscilloscopes that have either standard BNC inputs or AutoProbe1/BNC input connections.

N2894A passive probe
General-Purpose Passive Probes
Model Bandwidth Attenuation Ratio Input Impedance1 Compensation Range2
 Notes
N2840A 50 MHz
 10:1 10 MΩ // 11 pF
 5 - 30 pF
  
10074D 150 MHz 10:1 10 MΩ // 15 pF
 9 - 17 pF
  
N2841A 150 MHz
 10:1 10 MΩ // 11 pF
 5 - 30 pF
 Recommended for InfiniiVision 2000 X-Series
N2871A 200 MHz 10:1 10 MΩ // 9.5 pF
 10 - 25 pF
 Optimized for fine-pitch probing
N2842A
 300 MHz
 10:1
 10 MΩ // 11 pF
 5 - 30 pF
 Recommended for InfiniiVision 2000 X-Series
N2853A
 350 MHz
 10:1
 10 MΩ // 11 pF
 5 - 30 pF
  
N2872A
 350 MHz
 10:1 10 MΩ // 9.5 pF
 10 -25 pF
 Optimized for fine-pitch probing
N7007A
 400 MHz 10:1 10 MΩ // 16 pF
 6 - 18 pF
 Extreme temperature probing  (-40 to +85°C), 2 meter cable
N2843A 500 MHz
 10:1 10 MΩ // 11 pF
 5 - 30 pF
 Recommended for InfiniiVision 3000 X-Series
10073D
 500 MHz
 10:1 2.2 MΩ // 12 pF
 6 - 15 pF
  
 N2873A   500 MHz 10:1 10 MΩ // 9.5 pF 10-25 pF Fine-pitch, recommended for Infiniium EXR/MXR/S-Series
 N2875A   500 MHz 20:1 20 MΩ // 5.6 pF 7 - 20 pF Optimized for fine-pitch, low-capacitive probing
N2894A   700 MHz 10:1 10 MΩ // 9.5 pF 10 - 25 pF Fine-pitch, recommended for InfiniiVision 4000/6000 X-Series
PP0002A 800 MHz variable 40 MΩ // 2.0 pF N/A 5 mm tip, 1200 V CAT II, requires PP0004A (AutoProbe 1) 
PP0001A 1 GHz variable 10 MΩ // 4.0 pF N/A 5 mm tip, 300 V CAT II, requires PP0004A (AutoProbe 1) 
PP0003A 1 GHz variable 10 MΩ // 4.0 pF N/A MMCX connector, 30 V CAT II, requires PP0004A (AutoProbe 1) 
High-Sensitivity 1:1 Passive Probes
Model Bandwidth Attenuation Ratio Input Impedance1,3 Compensation Range
 Notes
10070D 20 MHz 1:1 1 MΩ // 70 pF +  N/A

Recommended for low-voltage measurements                                          
N2870A  35 MHz  1:1 1 MΩ // 39 pF +  N/A Recommended for low-voltage measurements            
Switchable Passive Probes (1:1 // 10:1)
Model Bandwidth Attenuation Ratio Input Impedance1,3 Compensation Range2
 Notes
   N2142A    6 MHz 1:1 1 MΩ // 100 pF +  N/A

Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series
70 MHz 10:1 10 MΩ // 15 pF + 15 - 30 pF
   N2140A    6 MHz 1:1 1 MΩ // 100 pF +

N/A

Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series
200 MHz 10:1 10 MΩ // 15 pF +
 15 - 30 pF
   N2889A    10 MHz 1:1 1 MΩ // 60 pF + N/A The most general-purpose passive probe
350 MHz 10:1 10 MΩ // 11 pF + 10 - 35 pF
High-voltage Passive Probe (100:1)
Model Bandwidth Atten. Ratio Input Impedance1 Compensation Range2
 Notes
10076C     500 MHz       100:1    66.7 MΩ // 3 pF +    6 - 18 pF   

High-voltage, low capacitive probing
High-frequency/Low-Z Passive Probes (50-Ω terminated)
Model Bandwidth Attenuation Ratio Input Impedance4 Compensation Range
 Notes
N2874A
 1.5 GHz 10:1
 500 Ω // 1.8 pF + N/A

Low-cost, high-frequency probing at the cost of resistive loading
N2876A 1.5 GHz 100:1 5 kΩ // 2.2 pF +  N/A Low-cost, high-frequency probing at the cost of resistive loading
TDR/TDT Probe
Model Bandwidth Type Input Impedance Tip Spacing Compatible TDR/TDT Modules Notes
N1021B 18 GHz Differential 100  Ω variable between 0.5mm-2.54mm

DCA-X N1055A & 54754A

 Designed for TDR applications, but also suitable as high bandwidth, passive probe for non-TDR applications
Passive Probes for Handheld Digital Oscilloscopes
Model Bandwidth Attenuation Ratio Input Capacitance Length Safety Rating
U1560A 45 MHz
 1:1 42 pF
 1.2 m Cat III 300 V
U1561A 250 MHz 10:1 16 pF
 1.2 m
 Cat III 600 V, Cat II 1000 V
U1562A 300 MHz
 100:1 6.5 pF
 1.2 m Cat III 600 V, Cat II 1000 V, Cat I 3540 V

1. Input impedance when terminated into oscilloscopes with 1-MΩ input terminations. For higher-bandwidth Infiniium oscilloscopes with 50-Ω input terminations only, the E2697A high impedance adapter can be purchased (includes 10073D 500-MHz passive probe) to provide a 1-MΩ input termination. 

2. For proper probe compensation (flatness), the oscilloscope’s input capacitance must be within the specified compensation range of the probe. 

3. Capacitance at the probe tip of 1:1 probes is the specified probe capacitance plus the capacitance of the oscilloscope when terminated into 1-MΩ.

4. Input impedance when terminated into oscilloscopes with 50-Ω input terminations. These probes are not compatible with Keysight’s InfiniiVision 1000 and 2000 X-Series oscilloscopes. 

High-Frequency Differential Active Probes < 10 GHz

Probing high-speed differential buses typically requires differential active probes. Keysight offers a broad range of differential active probing solutions for your unique measurement requirements based on bandwidth, dynamic measurement range, and probe loading.

High-Frequency Differential Active Probes
High-Frequency Differential Active Probes  < 10 GHz
Model Bandwidth Input Range Probe Offset Diff Input Impedance Attenuation Ratio Prob-to-scope Interface Power Source Oscilloscope Termination
N2750A 1.5 GHz ±5 V ±15 V 100 kΩ/0.7 pF 2:1/10:11 AutoProbe1 Oscilloscope 50 Ω
N2751A 3.5 GHz ±5 V
 ±15 V 100 kΩ/0.7 pF 2:1/10:11 AutoProbe1 Oscilloscope 50 Ω
N2752A 6.0 GHz ±5 V ±15 V 100 kΩ/0.7 pF 2:1/10:11 AutoProbe1 Oscilloscope 50 Ω
1130B2 1.5 GHz ±2.5 V ±12 V 50 kΩ/0.27 pF 10:1 AutoProbe1 Oscilloscope 50 Ω
1131B2
 3.5 GHz ±2.5 V ±12 V 50 kΩ/0.27 pF 10:1 AutoProbe1 Oscilloscope 50 Ω
1132B2 6.0 GHz ±2.5 V ±12 V 50 kΩ/0.27 pF 10:1 AutoProbe1 Oscilloscope 50 Ω
1134B2 7.0 GHz ±2.5 V ±12 V 50 kΩ/0.27 pF 10:1 AutoProbe1 Oscilloscope 50 Ω
N2830A2,3 4 GHz ±2.5 V ±16 V 100 kΩ/0.32 pF 5:1/10:11 AutoProbe1 Oscilloscope 50 Ω
N2831A2,3 8 GHz ±2.5 V ±16 V 100 kΩ/0.32 pF
 5:1/10:11 AutoProbe1 Oscilloscope 50 Ω
N7000A2 8 GHz ±2.5 V ±16 V 100 kΩ/0.32 pF 5:1/10:11 AutoProbe2 Oscilloscope 50 Ω
  1. Auto-selected based on V/division setting.
  2. Requires differential probe head sold separately.
  3. Not compatible with InfiniiVision X-Series oscilloscopes, but is compatible with the Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A and N2852A adapters
Oscilloscope Compatibility for High-Frequency Differential Active Probes (<10 GHz)
Probe-to-scope Interface
 Scope Termination
 Compatible Oscilloscopes
BNC 50 Ω
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series 
  • Infiniium EXR, MXR, S-Series, 9000 Series
  • Any vendor’s oscilloscope with a BNC input connection and a 50 Ω input impedance termination 
AutoProbe1

50 Ω
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series (except N2830A and N2831A)
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter
AutoProbe2 50 Ω
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series

AutoProbe Interface

Keysight’s AutoProbe interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

High-Frequency Differential Active Probes ≥ 10 GHz

Get the highest performance available for measuring differential and single-ended signals on high-density integrated circuits and printed circuit boards.   

As devices get smaller and faster, accurately probing signals becomes more challenging. Keysight’s InfiniiMax Probing System has the most accurate probe amplifiers, the widest variety of probe heads, and all the accessories you need to get the job done.

MXOxxxA
High-Frequency Differential Active Probes ≥ 10 GHz
Model Bandwidth Impedance Profile1 Diff Input Impedance Probe Noise2 Probe-to-Scope Interface InfiniiMode3 Input Range Probe Offset Attenuation Range4
MX0032A 52 GHz (B-T 40 GHz) RCRC 100 kΩ/ 0.32 pF 27.1 nV/ rt(Hz) AutoProbe3 No ±1 V ±12 V 4.4:1/ 8.7:1
MX0031A 52 GHz RCRC 100 kΩ/ 0.32 pF 27.1 nV/ rt(Hz) AutoProbe3 No ±1 V
 ±12 V 4.4:1/ 8.7:1
MX0030A 42 GHz RCRC 100 kΩ/ 0.32 pF 27.1 nV/ rt(Hz) AutoProbe3 No ±1 V ±12 V 4.4:1/ 8.7:1
N2803A 30 GHz RCRC 100 kΩ /0.32 pF
 23.9 nV/rt(Hz) AutoProbe2 No ±1.25 V
 ±16 V
 6:1
MX0025A 25 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2 Yes ±2.5 V ±16 V 1:1/4:1/8:1
MX0023A 25 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2
 No ±1.25 V ±16 V 1:1/4:1
N2802A 25 GHz RCRC 100 kΩ /0.32 pF 23.9 nV/rt(Hz) AutoProbe2
 No ±1.25 V ±16 V 6:1
MX0024A 20 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2 Yes ±2.5 V ±16 V 1:1/4:1/8:1
N2801A 20 GHz RCRC 100 kΩ /0.32 pF 23.9 nV/rt(Hz) AutoProbe2
 No ±1.25 V ±16 V 6:1
N7003A 20 GHz RCRC 100 kΩ /0.32 pF 33.5 nV/rt(Hz) AutoProbe2
 Yes ±2.5 V ±16 V 5:1/10:1
MX0022A 16 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2 Yes ±2.5 V ±16 V 1:1/4:1/8:1
N7002A 16 GHz RCRC 100 kΩ /0.32 pF 33.5 nV/rt(Hz) AutoProbe2
 Yes ±2.5 V ±16 V 5:1/10:1
MX0021A 13 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2 Yes ±2.5 V ±16 V 1:1/4:1/8:1
N7001A 13 GHz RCRC 100 kΩ /0.32 pF 33.5 nV/rt(Hz) AutoProbe2
 Yes ±2.5 V ±16 V 5:1/10:1
N2832A 13 GHz RCRC 100 kΩ /0.32 pF 33.5 nV/rt(Hz) AutoProbe1
 Yes ±2.5 V ±16 V 5:1/10:1
1169B 13 GHz RC 50 kΩ /0.21 pF 25.0 nV/rt(Hz) AutoProbe1
 No ±1.65 V ±16 V 3.45:1
MX0020A 10 GHz RC 50 kΩ/0.17 pF 25.0 nV/rt(Hz) AutoProbe2 Yes ±2.5 V ±16 V 1:1/4:1/8:1
1168B 10 GHz RC 50 kΩ /0.21 pF 25.0 nV/rt(Hz) AutoProbe1
 No ±1.65 V ±16 V 3.45:1

1.  Input Impedance Profile: RCRC architecture is the best choice for signals with low source impedance and RC architecture is the best choice for measuring signals that transition to low power modes because it has lower loading.

2.  Probe noise listed is the most common setup. Probe noise can vary with multiple factors such as attenuation ratio, probe head, and probe mode.

3.  Measure differential, single-ended, and common mode signals.

4.  Auto selected based on volts/division (all modes).

Oscilloscope Compatibility for High-Frequency Differential Active Probes ≥ 10 GHz
Probe-to-scope Interface
 Compatible Oscilloscopes
AutoProbe1

Infiniium MXR, EXR, S-Series, 9000, and 90000A Series

Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter

Infiniium UXR (1.85 mm and 1 mm models) with the cascaded use of the N5442A & N2852A adapters
AutoProbe2

Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series

Infiniium UXR (1.85 mm and 1 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) 
AutoProbe3 Infiniium UXR (1.85 mm and 1 mm models)

High-Voltage Differential Active Probes

Keysight offers a broad range of high-voltage differential probes to help test power-related devices and circuits including probes with high input impedance for minimal loading, probes with multiple attenuation ratios for optimum dynamic range measurements, and probes that can measure up to ±7000 Volts.

High-Voltage Differential Active Probes
Model Bandwidth Input Range Diff Input Impedance Attenuation Ratio Prob-to-scope Interface Power Source Oscilloscope Termination
DP0010A 250 MHz ±42 V 1.7 MΩ/0.9 pF 17:1/85:1 AutoProbe1 Oscilloscope 50 Ω
DP0011A 500 MHz ±42 V 1.7 MΩ/0.9 pF 17:1/85:1 AutoProbe1 Oscilloscope 50 Ω
DP0012A 1.0 GHz ±42 V 1.7 MΩ/0.9 pF 17:1/85:1 AutoProbe1 Oscilloscope 50 Ω
DP0013A 1.7 Ghz ±42 V 1.7 MΩ/0.9 pF 17:1/85:1 AutoProbe1 Oscilloscope 50 Ω
N2805A
 200 MHz
 ±100 V 4 MΩ/4.0 pF
 50:1 AutoProbe1 Oscilloscope 50 Ω
N2804A
 300 MHz
 ±300 V
 8 MΩ/10 pF
 100:1
 AutoProbe1 Oscilloscope 50 Ω
N2790A
 100 MHz
 ±1400 V
 1 MΩ/3.5 pF
 50:1/500:1
 AutoProbe1 Oscilloscope 1 MΩ
DP0001A
 400 MHz
 ±2000 V
 10 MΩ/2.0 pF
 50:1/100:1/250:1/500:1
 AutoProbe1 Oscilloscope 50 Ω
Oscilloscope Compatibility for High-Voltage Differential Active Probes
Probe-to-scope Interface
 Oscilloscope Termination
 Compatible Oscilloscopes
BNC 1 MΩ
  • InfiniiVision 1000, 2000, 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 Series
  • Any vendor’s oscilloscope with a BNC input connection and a 1 MΩ input impedance termination 
BNC

50 Ω
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 and 90000A Series
  • Any vendor’s oscilloscope with a BNC input connection and a 50 Ω input impedance termination
AutoProbe11 50 Ω
  • InfiniiVision 3000A1, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A & N2852A adapters


1.  DP0001A is not compatible with the InfiniiVision 3000A X-Series oscilloscopes.

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Single-Ended Active Probes

Measurements Referenced to Ground

When capacitive loading and limited bandwidth of conventional passive probes begin to degrade the measurement integrity of your high-speed signals, consider using one of Keysight’s higher bandwidth single-ended active probes.

Single-Ended Active Probes
Single-Ended Active Probes
Model Bandwidth Input Range Probe Offset Input Impedance Attenuation Ratio Probe-to-scope Interface Notes
N2795A 1 GHz ±8 V
 ±8 V 1 MΩ/1.0 pF
 10:1 AutoProbe1
  
N2797A  1.5 GHz ±8 V
 ±12 V 1 MΩ/1.0 pF
 10:1 AutoProbe1

Extreme Temp. (-40 to +85° C), 2 meter long cable
N2796A 2 GHz
 ±8 V
 ±12 V 1 MΩ/1.0 pF
 10:1 AutoProbe1
  
1130B1 1.5 GHz ±2.5 V ±12 V 25 kΩ/0.44 pF
 10:1 AutoProbe1  
1131B1 3.5 GHz
 ±2.5 V
 ±12 V 25 kΩ/0.44 pF
 10:1
 AutoProbe1  
1132B1 5.0 GHz
 ±2.5 V
 ±12 V 25 kΩ/0.44 pF
 10:1
 AutoProbe1  
1134B1 7.0 GHz
 ±2.5 V
 ±12 V 25 kΩ/0.44 pF
 10:1
 AutoProbe1
  
  1. Single-ended and differential probe. Requires probe head sold separately.
Oscilloscope Compatibility for Single-Ended Active Probes
Probe-to-scope Interface
 Compatible Oscilloscopes
AutoProbe1
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the N5442A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A & N2852A adapters (only for N2795A/96A/97A, not for 1130B/31B/32B/34B) 

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Power Rail Probes

Measure Output Ripple with High-Sensitivity

Engineers often use 1:1 passive probes for the sensitivity required to measure the output ripple of DC supplies. But 1:1 passive probes have limited bandwidth (typically less than 35 MHz) and no DC offset capability. A Keysight power rail probe can measure noise, output ripple, and transients on DC power supplies with high sensitivity (millivolts), large DC offsets, and high bandwidth.

N7020A Power Rail Probe
Power Rail Probes
Model Bandwidth Input Range Probe Offset Input Impedance Attenuation Ratio Probe-to-scope Interface
N7020A 2 GHz ±850 mV1 ±24 V
 50 kΩ 1.1:1 AutoProbe1
N7024A 6 GHz ±600 mV1 ±15 V
 50 kΩ
 1.3:1 AutoProbe1
  1. Measurement range about offset level. 
Oscilloscope Compatibility for Power Rail Probes
Model  Compatible Oscilloscopes
N7020A
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series oscilloscopes.
  • Infiniium EXR, MXR, S-Series, and 9000 Series oscilloscopes.
N7024A
  • Infiniium EXR, MXR, S-Series, 9000 Series, and 90000A Series oscilloscopes.
  • Infiniium UXR-Series, V-Series, Z-Series, 90000Q Series, and 90000X Series with the use of the N5442A adapter.

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Current Probes

Keysight offers a broad range of current probing solutions including clamp-on current probes with bandwidths from DC to 150 MHz, Rogowski coils that can measure peak currents up to 3000 Amps, and high-sensitivity R-shunt probes that can measure current as low as 50 µA.

Current Probe for Oscilloscopes
AC/DC Hall-Effect (Clamp-On) Current Probes
Model Bandwidth Max Current Conversion Factor (Attenuation) Min Scope Vertical Scale  Probe-to-Scope Interface Power Source
N7026A 150 MHz 40 A-Pk1, 30 A-RMS1
 1 V/A (1:1), 0.2 V/A (5:1)2
 1 mA/div AutoProbe1 Oscilloscope
N2893A 100 MHz 30 A-Pk3, 24 A-RMS3 0.1 V/A (10:1) 10 mA/div AutoProbe1 Oscilloscope
N2783B 100 MHz 50 A-Pk, 30 A-RMS 0.1 V/A (10:1) 10 mA/div BNC N2779A
1147B 50 MHz 30 A-Pk3, 24 A-RMS3
 0.1 V/A (10:1) 10 mA/div AutoProbe1 Oscilloscope
N2782B 50 MHz 50 A-Pk, 30 A-RMS 0.1 V/A (10:1) 10 mA/div BNC N2779A
N2781B 10 MHz 300 A-Pk, 150 A-RMS 0.01 V/A (100:1)  100 mA/div BNC N2779A
N2780B 2 MHz 700 A-Pk, 500 A-RMS 0.01 V/A (100:1)  100 mA/div BNC N2779A
1146B 100 kHz 100 A-Pk, 100 A-RMS 0.1 V/A (10:1), 0.01 V/A (100:1)4
 10 mA/div BNC 9 V Battery
AC-Only Rogowski Current Probes
Model Bandwidth Max Current Conversion Factor (Attenuation) Probe-to-Scope Interface Power Source
N7042A 9.2 Hz- 30 MHz 300 A-Pk 0.02 V/A (50:1) BNC AC power adapter or 4x AA batteries
N7041A 12 Hz - 30 MHz 600 A-Pk 0.01 V/A (100:1) BNC AC power adapter or 4x AA batteries
N7040A 3 Hz - 23 MHz 3000 A-Pk 0.002 V/A (500:1) BNC AC power adapter or 4x AA batteries
High-Sensitivity AC/DC R-Shunt Current Probes
Model Bandwidth Current Range5 Gain Channels Probe Heads (Standard) Probe-to-Scope Interface Power Source
N2820A

Zoom-out: 3 MHz

Zoom-in: 500 kHz

Zoom-out: 5 A

Zoom-in: 50 µ A 

Zoom-out: 1.97

Zoom-in: 300		 2

20 mΩ, 100 mΩ,

User-defined		 AutoProbe1 Oscilloscope
N2821A

Zoom-out: 3 MHz

Zoom-in: 500 kHz

Zoom-out: 5 A

Zoom-in: 50 µ A 

Zoom-out: 1.97

Zoom-in: 300

 1

20 mΩ, 100 mΩ,

User-defined		 AutoProbe1 Oscilloscope
  1. When using a power adapter booster (standard). 15 A-Pk, 5 V-RMS without oscilloscope-provided power only. An MXR/EXR enables max current range without using the power adapter.
  2. Auto-selected based on Amps/division setting.
  3. The maximum number of current probes supported by InfiniiVision oscilloscopes is limited depending on the oscilloscope. Infiniium oscilloscopes have no limitations.
  4. Manually selectable. 
  5. A wider input range is possible when using the user-defined head and Rsense.
Oscilloscope Compatibility for Current Probes
Probe-to-scope Interface
 Compatible Oscilloscopes
BNC
  • InfiniiVision 1000, 2000, 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Any vendor’s oscilloscope with a BNC input connection and a 1 MΩ input impedance termination
AutoProbe1
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, and 9000 and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5449A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5449A & N2852A adapters (only for 1147B and N2893A, not for N7026A, N2820A/21A)

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Optical Probes

Keysight offers fully-integrated optical front-end solutions for Infiniium real-time oscilloscopes. The solution is designed for reference receiver testing of industry optical standards or characterizing the raw response of an optical transmitter. It can also be used to view optical streams at speeds up to 56 Gbaud PAM4, making it an ideal solution for characterizing or troubleshooting high-speed optical signals in system level testing and debugging.

Optical Probes
Optical Probes
Model Bandwidth Inputs Input Connector Type Wavelength Range Required Infiniium Baseline Software Output Connector Type Compatible Oscilloscopes
N7004A 33 GHz Single-mode & Multi-mode FC/PC to 50/125 um fiber  750 nm to 1650 nm Version 05.70 or higher 2.92 mm female UXR (3.5 mm models), V, Z, Q, and 90000X
N7005A 60 GHz Single-mode FC/PC to 9/125 um fiber  1250 nm to 1600 nm Version 10.25 or higher 1.85 male UXR (1 mm & 1.85 mm models)

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Oscilloscope Probes – Frequently Asked  Questions

What is an oscilloscope probe?

An oscilloscope probe connects an oscilloscope to a device under test (DUT). Probes then transfer the signal from the DUT to the oscilloscope for analysis, enabling you to measure and test the electrical signals.

What are the different types of oscilloscope probes?

Passive probes: These probes are the most common types, suitable for low-frequency measurements. They only contain components like resistors and capacitors that passively respond to input signals. Therefore, these probes do not require external probe power.

Active probes: These are used for high-frequency measurements. They require external probe power for the active electronic components in the probe, such as amplifiers and transistors, which are used to improve signal fidelity and performance.

Differential probes: These consist of two sensing leads that measure the differential voltage between two test points where neither lead is grounded.

Current probes: These probes measure current waveforms. There are two types — clamp-on versions that do not break the circuit or types that you connect in series with the circuit.

Can I use any probe with any oscilloscope?

Compatibility is not assured even though many probes and oscilloscopes use standard connectors. It’s critical to verify:

• Bandwidth compatibility: The probe’s bandwidth should match or exceed the oscilloscope’s bandwidth.

• Connector type: Ensure the probe’s connector matches the oscilloscope input.

• Voltage and current ratings: Confirm the probe can handle the oscilloscope’s input range.

You should refer to the specific oscilloscope and probe manuals for detailed operation and maintenance guidelines, which are crucial for effective and accurate measurements.

How do I use an oscilloscope probe?

1. Connect the probe: You must attach the probe’s connector to the oscilloscope channel input and the probe tip to the point in the circuit you want to measure.

2. Compensate the probe: Many probes have a compensation adjustment. You must connect the probe to the oscilloscope’s calibration signal and adjust the compensation until the displayed waveform is correct.

3. Set the oscilloscope: You must adjust the oscilloscope settings (e.g. time base, vertical scale) to display the signal correctly.

4. Measure: You can analyze the signal using the oscilloscope’s measurement functions.

How do I maintain my oscilloscope probe?

Regular calibration: Calibrate the probe regularly to maintain accuracy.

Proper handling: Do not bend the cables sharply; carefully handle the probe tip to prevent damage.

Cleaning: You must keep the probe tip clean for accurate measurements using appropriate cleaning solutions recommended by the probe manufacturer.

Storage: When you are not using the probes, safely store to avoid physical damage or exposure to extreme conditions.

For more detailed answers, please check out the following blog.