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TriMode P7700 Series
Tektronix TriMode P7700 Series Technical Reference
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P7700
Series
T
riMode™
Probes
ZZZ
T
echnical
Reference
*P077112401*
077-1
124
-0
1
2
Table of Contents
Table of Contents
7
Important Safety Information
10
General Safety Summary
10
Terms in this Manual
11
Symbols and Terms on the Product
11
Theory of Operation
13
Introduction
13
Figure 1: P7700 Series Trimode Probe Components
13
Figure 2: P7700 Series Trimode Active Probe Tips
16
Figure 3: P7700 Series Trimode Probe Input Architecture
17
Table 1: Probe Tip Attenuation Factors
18
Trimode Operation
22
Figure 4: Trimode Input Structure
23
Operating Voltages
24
Figure 5: P7700 Probe Tip Inputs
24
Figure 6: Operating Voltage Window (Tekflex Solder-In Tips)
25
Figure 7: Dynamic Range Versus Linearity at the Probe Amplifier Step Gain Settings
27
Figure 8: Operating Voltage Window (P77BRWSR)
28
Figure 9: Dynamic Range Linearity Error Plot
28
Figure 10: Simplified Diagram of the P7700 Series Probe Tip Input Network
30
Figure 11: Probe Setup Screen
31
Figure 12: Simplified Auto Offset Circuitry
32
Improving Measurement Accuracy
33
Figure 13: P77STFLXA Solder Tip Attached with 10 Mils (0.250 MM) Wires (Rise Time = 30.5 Ps)
35
Figure 14: P77STFLXA Solder Tip Attached with 75 Mils (1.90 MM) Wires (Rise Time = 27.9 Ps)
35
Figure 15: P77STFLXA Solder Tip Attached with 120 Mils (3.05 MM) Wires (Rise Time = 30.1 Ps)
36
Figure 16: P77STFLXA Solder Tip Attached with 200 Mils (5.08 MM) Wires (Rise Time = 34 Ps)
36
Figure 17: P77STFLXA Solder Tip Attached with 300 Mils (7.62 MM) Wires (Rise Time = 42.8 Ps)
37
Table 2: Rise Time and Overshoot Degradation Versus Lead Length
37
Figure 18: Simplified Diagram of the P7700 Series Probe Tip Input Network
38
Figure 19: Differential Input Mode Signal Voltage and Offset Voltage
40
Figure 20: Solder Tip Measurement Configuration
41
Figure 21: Example of LVDS Differential Signal
41
Reference
43
Single-Ended Measurements
43
Table 3: Single-Ended Dynamic and Offset Ranges
43
Differential Measurements
44
Figure 22: Simplified Model of a Differential Amplifier
45
Figure 23: Typical CMRR
46
Figure 24: Typical Channel Isolation
48
Specifications
49
Warranted Characteristics
49
Table 4: Electrical Characteristics
49
Table 5: Environmental Characteristics
51
Typical Characteristics
52
Table 6: Typical Electrical Characteristics
52
Table 7: Electromagnetic Compatibility (EMC)
54
Figure 25: P77STCABL Differential Impedance
55
Figure 26: P77STCABL SE Impedance
55
Figure 27: P77STFLXA Differential Impedance
56
Figure 28: PST77FLXA SE Impedance
56
Figure 29: P77BRWSR Differential Impedance
57
Figure 30: Differential Mode P77STCABL and P77FLXA Equivalent Circuit Diagram
57
Figure 31: Single-Ended P77FLXA Equivalent Circuit Diagram
57
Figure 32: P77BRWSR Equivalent Circuit Diagram with 50 Mil Spacing
58
Figure 33: P77BRWSR Equivalent Circuit Diagram with 200 Mil Spacing
58
Host Instrument Firmware
59
Index
61
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Tektronix TriMode P7700 Series Specifications
General
Brand
Tektronix
Model
TriMode P7700 Series
Category
Measuring Instruments
Language
English
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