Appendix B: Specification
TDS 620 & TDS 640 User Manual
AĆ21
This subsection lists the
typical characteristics which describe the TDS 600
Digitizing Oscilloscopes. (Characteristics that differ according to model or
apply only to one model are preceded by the appropriate model number, TDS
620 or TDS 640, in the tables.)
Typical characteristics
are described in terms of typical or average
performance. Typical characteristics
are not warranted.
Table A-19: Typical Characteristics — Signal Acquisition System
Name
Description
Accuracy, DC Voltage Measurement,
Not Averaged
Measurement Type
Any Sample
Delta Volts between any two
samples
2
DC Accuracy
1.5%
| Reading – Net
Offset
1 |
+ Offset Accuracy
+ 0.13 div + 0.6 mV)
1.5%
| Reading | + 0.26
div + 1.2 mV)
Frequency Limit, Upper, 100 MHz
Bandwidth Limited
100 MHz
Frequency Limit, Upper, 20 MHz
Bandwidth Limited
20 MHz
Calculated Rise Time
3
Volts/Div Setting
5 mV/div–10 V/div
2 mV/div–4.98 mV/div
1 mV/div–1.99 mV/div
Calculated Rise Time
3
800 ps
1.3 ns
2.0 ns
Step Response Settling Errors
Volts/Div Setting
Step
Response
Settling Error (%)
4
at
1 mV/div –
99.5 mV/div
100 mV/div –
995 mV/div
1 V/div – 10 V/div
v
2 V
v
20 V
v
200 V
20 ns
v
0.5
v
1.0
v
1.0
100 ns
v
0.2
v
0.5
v
0.5
20 ms
v
0.1
v
0.2
v
0.2
1
Net Offset = Offset – (Position x Volts/Div). Net Offset is the voltage level at the center of the A-D converter’s dynamic range.
Offset Accuracy is the accuracy of this voltage level.
2
The samples must be acquired under the same setup and ambient conditions.
3
The numbers given are valid 0
_
C to +30
_
C and will increase as the temperature increases due to the degradation in bandwidth.
Rise time is calculated from the bandwidth. It is defined by the following formula:
RiseĄ TimeĄ (ns) +
400
BWĄ (MHz)
Note that if you measure rise time, you must take into account the rise time of the test equipment (signal source, etc.) that you use to
provide the test signal. That is, the measured rise time (RT
m
) is determined by the instrument rise time (RT
i
) and the rise time of the
test signal source (RTgen) according to the following formula:
RT
m
Ą
2
+ RT
i
Ą
2
) RT
gen
Ą
2
4
The values given are the maximum absolute difference between the value at the end of a specified time interval after the mid-level
crossing of the step, and the value one second after the mid-level crossing of the step, expressed as a percentage of the step ampli-
tude.
Typical
Characteristics
Summary of Contents for TDS 620
Page 10: ...Product Description Product Description vi...
Page 17: ...Tutorial Replace this page with the tab divider of the same name...
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Page 37: ...Concepts Replace this page with the tab divider of the same name...
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Page 55: ...In Detail Replace this page with the tab divider of the same name...
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Page 166: ...Signal Path Compensation In Detail 3 110 Figure 3 53 Performing a Signal Path Compensation...
Page 181: ...Appendices Replace this page with the tab divider of the same name...
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Page 206: ...Appendix B Specification Appendices A 24...
Page 222: ...Appendix E Packaging for Shipment Appendices A 40...
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Page 238: ...Glossary Glossary G 10...
Page 248: ...Index Index I 10...