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TDS 520A, 524A, 540A, & 544A Performance Verification
Typical Characteristics
The tables in this subsection list the
typical characteristics
that describe the
TDS 520A, 524A, 540A and 544A Digitizing Oscilloscopes.
Typical characteristics
are described in terms of typical or average
performance. Typical characteristics
are not warranted.
Table 2-13: Typical Characteristics — Signal Acquisition System
Name
Description
Accuracy, Delta Time Measurement For single-shot acquisitions using single-shot sample acquisition
modes.
1
Time Measurement Error ≤ .15* Si + (25 ppm |Reading|) + (Time
Per Div 1000)
Add 50 ps (typical) Channel Skew for 2 channel measurements.
Sample calculation:
To measure the width of a 65.5 ns pulse at 1 GS/sec sampling,
Time Measurement Error
≤ (0.15 × 1 ns) + (2.5 × 10
–5
)(65.5 ns) + (50 ns/div 1000)
≤ 0.15 ns + 0.002 ns + 0.05 ns
≤ 202 ps
Delay Between Channels, Full Band-
width, Equivalent Time
250 ps for any two channels with equal volts/division and coupling
settings
Frequency Limit, Upper, 100 MHz
Bandwidth Limited
100 MHz
Frequency Limit, Upper, 20 MHz
Bandwidth Limited
20 MHz
Calculated Rise Time
2
Volts/Div Setting
5 mV/div–10 V/div
2 mV/div–4.98 mV/div
1 mV/div–1.99 mV/div
Rise Time
800 ps
1.2 ns
1.6 ns
Nonlinearity
<1 DL, differential; 1 DL, integral, independently based