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12 N2820/1A User’s Guide

1 General Information

Measurements on Battery Powered Devices

When making measurements on a battery- powered (floating)

device, such as a mobile phone, always connect the supplied

ground lead between ground on your device and the probe’s

ground connector as shown in Figure 4. Simply snap the end

of the ground lead onto the probe’s connector. Without the

ground connection, the common mode voltage is not

guaranteed to be within the common mode range of the

amplifiers.

NOTE Failure to connect the ground lead may result in inaccurate waveforms.

Figure 4 Supplied Ground Lead on Device

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 81 82

Agilent N2820/1A 1
High-Sensitivity 1
Current Probes 1
CAUTION. A CAUTION notice 2
WARNING. A WARNING notice 2
2 N2820/1A User’s Guide 2
Contents 3
5 Performance Verification 4
General Information 5
Make-Before-Break (MBB) 9
Connectors 9
Accessories 10
14 N2820/1A User’s Guide 14
1 General Information 14
Probe Configuration 15
(Infiniium Oscilloscopes) 15
(InfiniiVision Oscilloscopes) 16
To configure the probe 17
Charge—A New Measurement 20
9000 H-Series and 21
9000A Oscilloscopes 21
3000 X and 4000 21
X-Series Oscilloscopes 21
On Infiniium 22
Oscilloscopes 22
On InfiniiVision 23
Dynamic Range 24
Effects Other Than Dynamic 25
Channel Position on the 25
Inspecting the Probe 26
Contacting Agilent 27
Technologies 27
Safety Information 28
Which the Probe is Connected 30
Agilent Technologies 31
Introduction 32
Probing 2 33
N2820/1A User’s Guide 33 33
Attaching a Probe Head 34
N2822/4A Probe Heads 35
Need a Different R 36
Resistor Value? 36
N2825A User-Defined Head 37
Using Multiple R 38
Resistances in Your DUTs? 38
Converting an N2825A to 39
Internal R 39
Make-Before-Break Connectors 40
To Use the MBB Connector 41
42 N2820/1A User’s Guide 42
2 Probing 42
To Download the Header 43
Gerber File 43
To Attach the Sensor Leads 44
48 N2820/1A User’s Guide 48
To Add an R 49
Resistor to an N2825A Head 49
Characteristics and 51
Specifications 51
52 N2820/1A User’s Guide 52
N2820/1A User’s Guide 53 53
Current Range Graphs 54
N2820/1A User’s Guide 55 55
58 N2820/1A User’s Guide 58
(N2822A 20 mW Head) 58
Dimensions 59
60 N2820/1A User’s Guide 60
Performance Data Plots 61
N2820A Frequency Response 62
Performance Data Plots 4 63
N2820/1A User’s Guide 63 63
64 N2820/1A User’s Guide 64
4 Performance Data Plots 64
N2820A Step Response 65
N2820A Step Tracking 66
N2820A Input Impedance 68
Input Load Model 69
70 N2820/1A User’s Guide 70
Performance Verification 71
Power Module 72
78
Performance Test Record 80
and Power 81
82 N2820/1A User’s Guide 82

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