Agilent Technologies N2792A User Manual Download Page 24 | Manualshive

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Figure 19

Frequency Response

Figure 20

Frequency Response When Inputs Driven in Common Mode (CMRR)

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Summary of Contents for N2792A

Page 1: ...N2792A and N2793A Differential Probes User s Guide ...

Page 2: ... June 1987 U S Government users will receive no greater than Lim ited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Warranty The material contained in this document is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Agilent disclaims a...

Page 3: ...792A Probe 9 Using N2793A Probe 11 Safety Information 15 Specifications and Characteristics 16 Performance Plots N2792A Probe 19 Performance Plots N2793A Probe 23 N2792A Performance Verification Procedures 27 N2793A Performance Verification Procedures 31 ...

Page 4: ...ntial probes have an input resistance of 1 MW N2792A and 200 kW N2793A and both feature low input capacitance to minimize circuit loading 7 pF for N2792A and 2 pF for N2793A The N2792A and N2793A probes are compatible with any oscilloscope equipped with 50W BNC inputs They can be powered by any USB port on your oscilloscope or computer or by an internal battery one 9V battery included with each pr...

Page 5: ...ne or similar solvents Inspecting the Probe Inspect the shipping container for damage Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the probe has been checked mechanically and electrically Check the accessories If the contents are incomplete or damaged notify your Agilent Technologies Sales Office Inspect the in...

Page 6: ...he quantity of each accessory in the kit is the same as listed in the table and originally provided with the probe The battery is not included in the kit Figure 2 N2792A Supplied Accessories Table 1 N2792A Accessories Accessory Qty Supplied Hook Clip red 1 Hook Clip black 1 Alligator Clip red 1 Alligator Clip black 1 USB Power Cord 2m 1 9V Battery 1 ...

Page 7: ... probes Replacements can be ordered with the N2793 68700 replacement kit The quantity of each accessory in the kit is the same as listed in the table and originally provided with the probe The battery is not included in the kit Figure 3 N2793A Supplied Accessories ...

Page 8: ...black 1 Extension Lead 0 8 mm J P 5 cm red 1 Extension Lead 0 8 mm J P 5 cm black 1 Extension Lead 0 8 mm J P 10 cm red 1 Extension Lead 0 8 mm J P 10 cm black 1 Dual Signal Pin 12 8 mm 2 Dual Signal Pin 16 8 mm 2 Single Signal Pin 0 8 mm 6 Variable Pitch Signal Pin 2 DC Blocking Capacitor 2 USB Power Cord 2m 1 9V Battery 1 ...

Page 9: ...e channel input of the oscilloscope The oscilloscope must have a 50W input and be ground referenced WARNING Must be Grounded Before making connections to the input leads of this probe ensure that the output BNC connector is attached to the BNC channel input of the oscilloscope and the oscilloscope is properly grounded CAUTION To protect against electrical shock use only the accessories supplied wi...

Page 10: ...operly Hook and Alligator Clips Before you can use the N2792A probe gently push the supplied hook clips or alligator clips onto the probe leads as shown in Figure 5 Use the hook clips to clamp onto smaller components and the alligator clips to clamp onto thicker gauge devices Figure 5 Inserting the Supplied Clips ...

Page 11: ... channel input of the oscilloscope The oscilloscope must have a 50W input and be ground referenced WARNING Must be Grounded Before making connections to the input leads of this probe ensure that the output BNC connector is attached to the BNC channel input of the oscilloscope and the oscilloscope is properly grounded CAUTION To protect against electrical shock use only the accessories supplied wit...

Page 12: ...h Signal Pins Insert the single or dual signal pins into the probe tip as shown in Figure 8 Directly probing with either one of these pins results in the best possible signal integrity when compared to the other probing accessories The variable pitch spacing adapter allows you to easily probe two adjacent IC leads or test points Figure 9 shows the variable pitch pins inserted into the probe tip ...

Page 13: ...Tip Extension Leads If the length of the signal pins is not adequate for your measurement setup or if you need to use the pincer or micro IC clips the extension leads can be placed over the pins as shown below The probe comes with both 5 cm and 10 cm long extensions leads Figure 10 Extension Leads on Probe ...

Page 14: ...o the end of the extension leads Squeeze the lever on the micro IC clips to extend the grasping jaws Push the back of the pincer clips to extend their connectors DC Blocking Capacitor Use the DC blocking capacitor to block out unwanted DC components on the input signal Figure 11 DC Blocking Capacitor Inserted into the Probe Tip ...

Page 15: ...e oscilloscope and the oscilloscope is properly grounded WARNING Do Not Operate Without Covers To avoid electrical shock or fire hazard do not operate this probe with the covers removed WARNING Do Not Operate in Wet Damp Conditions To avoid electrical shock do not operate this probe in wet or damp conditions WARNING Do Not Operate in an Explosive Atmosphere To avoid injury or fire hazard do not op...

Page 16: ...any testing and the environmental conditions should not exceed the probe s specified limits NOTE Adhere to the specifications and characteristics listed in these tables to prevent damage to the probe and to keep the probe functioning properly Table 3 N2792 3A Safety Specifications Description CEI IEC 61010 031 CAT II ...

Page 17: ... Output Voltage Swing 2V driving 50W scope input 1 5V driving 50W scope input Offset typical 2 mV 5 mV Offset Adjustment Range 95 mV to 95 mV 20 mV to 20 mV AC CMRR 80 dB at 60 Hz 50 dB at 10 MHz 6 mVrms 60 dB at 60 Hz 15 dB at 500 MHz 4 7 mVrms Noise Referenced to Input Probe Only 6 mVrms 4 7 mVrms Power Requirements One 9V battery or USB power adapter 5V to 9V 200 mA One 9V battery or USB power ...

Page 18: ...ion Specification Temperature Operating 10 C to 40 C Non operating 30 C to 70 C Altitude Operating 3 000 m 9 842 feet Non operating 15 300 m 50 196 feet Humidity Operating 25 85 room humidity Non operating 25 85 room humidity Pollution Degree Pollution Degree 2 Table 7 DC Blocking Capacitor Electrical Characteristics Description Characteristic Bandwidth 3 dB 30 kHz to 1 GHz Impedance 50W Maximum I...

Page 19: ...nce Plots N2792A Probe Input Step Signal 10 90 rise time 3 5ns 20 80 rise time 2 2 ns Measured Step Response 10 90 rise time 3 5 ns 20 80 rise time 2 2 ns Figure 12 N2792A Normalized Differential Step Response 50Ω ...

Page 20: ...20 Figure 13 N2792A Frequency Response Figure 14 Frequency Response When Inputs Driven in Common Mode CMRR ...

Page 21: ...21 Figure 15 Input Impedance Equivalent Model With Measured Input Capacitance Values Figure 16 Typical Input Impedance Plot ...

Page 22: ...22 Figure 17 Typical Derating Curve of Absolute Maximum Input Voltage Either Input to Ground ...

Page 23: ...nce Plots N2793A Probe Input Step Signal 10 90 rise time 900ps 20 80 rise time 800 ps Measured Step Response 10 90 rise time 900 ps 20 80 rise time 800 ps Figure 18 N2793A Normalized Differential Step Response 50Ω ...

Page 24: ...24 Figure 19 Frequency Response Figure 20 Frequency Response When Inputs Driven in Common Mode CMRR ...

Page 25: ...25 Figure 21 Input Impedance Equivalent Model With Measured Input Capacitance Values Figure 22 Typical Input Impedance Plot ...

Page 26: ...26 Figure 23 Typical Derating Curve of Absolute Maximum Input Voltage Either Input to Ground ...

Page 27: ... 1 MΩ 50Ω selectable input Agilent MSO9254A Display probe output Signal Generator Precision DC voltage source Amplitude accuracy less than or equal to 0 25 1 MΩ 50Ω selectable load Sine wave greater than or equal to 200 MHz Fluke 9500B Or Agilent E8257D 1EU option Signal source for DC gain and bandwidth BNC Adapter BNC f to Dual Banana m Adapter Agilent 1251 2277 Interconnection between probe and ...

Page 28: ...ble the output Waveform square wave Load 1 MΩ Amplitude 0 1V pk pk Frequency 1 kHz 5 On the oscilloscope select the amplitude measurement and record the DC amplitude approximately 100 mV of the square wave This measurement is only the oscilloscope 6 Disable the 9500B s output and disconnect the active head from channel 1 of the oscilloscope 7 Connect the N2792A probe output to channel 1 of the osc...

Page 29: ...he differential probe input leads by clipping the alligator clamp to the BNC adapter banana post 17 Enable the 9500B s output 18 Configure the oscilloscope to the following settings Amplitude Scale Channel 1 50 mV div Time Scale 2 ns div Acquisition mode Peak Detect 19 Center the trace on the oscilloscope 20 On the N9500B configure CH1 to to the following settings Waveform sine wave Load 50Ω Ampli...

Page 30: ... 9 N2792A Performance Test Record Certification Details Serial Number Tested By Certification Date Recommended Date of Next Certificaton Certification Temperature Test Probe Setting Test Limits Test Results DC Differential Gain 10 1 98 mV to 102 mV Bandwidth 10 1 210 mV scope vertical accuracy ...

Page 31: ...play probe output Signal Generator Precision DC voltage source Amplitude accuracy less than or equal to 0 25 1 MΩ 50Ω selectable load Sine wave greater than or equal to 800 MHz Fluke 9500B Or Agilent E8257D 1EU option Signal source for DC gain and bandwidth Performance Check Fixture 50Ω impedance controlled microstrip trace Agilent E2655B Probing trace for bandwidth test Terminator 50Ω matched loa...

Page 32: ...ble the output Waveform square wave Load 1 MΩ Amplitude 0 1V pk pk Frequency 1 kHz 5 On the oscilloscope select the amplitude measurement and record the DC amplitude approximately 100 mV of the square wave This measurement is only the oscilloscope 6 Disable the 9500B s output and disconnect the active head from channel 1 of the oscilloscope 7 Connect the N2793A probe output to channel 1 of the osc...

Page 33: ...oscilloscope to the following settings Amplitude Scale Channel 2 500 mV div 16 On the 9500B calibrator configure CH2 to the following settings Type TRIGGER Load 50Ω 17 On the 9500B connect the CH2 active head to channel 2 on the oscilloscope 18 Terminate PV fixture s 50W trace with the matched 50W terminator 19 Insert the probe s dual signal pins into the probe tip 20 Use a probe positioner to gen...

Page 34: ...should be greater than or equal to 210 mV scope vertical accuracy Record the test results as Bandwidth in Table 11 on page 34 26 Disable the N9500B s output and disconnect the probe input N2793A Performance Verification Test Record The recommended test interval is 1 year Table 11 N2793A Performance Test Record Certification Details Serial Number Tested By Certification Date Recommended Date of Nex...

Page 35: ...be 9 11 H handling 5 hook clips 6 10 I input impedance equivalent model N2792A 21 N2793A 25 inspecting probe 5 internal battery 4 M mechanical characteristics 18 micro IC clips 14 N N2792A accessories 6 performance plots 19 performance verification 27 N2793A accessories 7 performance plots 23 performance verification 31 O oscilloscopes compatible 4 P performance plots N2792A 19 N2793A 23 performan...

Page 36: ...e cleaning 5 probe handling 5 probe inspection 5 R replacement kit 6 7 S safety information 15 safety specifications 16 single signal pins 12 U USB power cord 9 11 USB power input 9 11 V variable pitch pins 12 ...

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