Appendix: Warra
nted Specifications
Offset accuracy ±[0.005 × | offset – position | + DC Balance]
NOTE. Both the position and constant offset term must be converted to volts by
multiplying b
y the appropriate volts/div term.
Long-term sample
rate and delay time
accuracy
±10 ppm over any ≥ 1mstimeinterval
Auxiliary output
(AUX OUT)
LOW TRUE; LOW to HIGH transition indicates that the trigger occurred. The logic
levels are g
iven in the following table:
Characteristic
Limits
Vout (HI) ≥ 3.25 V open circuit; ≥ 2.2 V into a 50 Ω load to ground
Vout (LO
)
≤ 0.4 V in
to a load of ≤ 4mA;≤0.3Vintoa50Ω load to ground
Random Noise,
Sample acquisition
mode
Bandwidth of
Instru
ment
Bandwidth Selection RMS Noise
500MHz Full bandwidth
<(170 μV + 8% of Volts/div Setting)
150 MH
z bandwidth limit
<(90 μV + 6% of Volts/div Setting)
20 MHz bandwidth limit
<(25
μV + 6% of Volts/div Setting)
300MHz Full bandwidth
<(140 μV + 6% of Volts/div Setting)
150
MHz bandwidth limit
<(80 μV + 6% of Volts/div Setting)
20 MHz bandwidth limit
<(
30 μV + 5% of Volts/div Setting)
100MHz Full bandwidth
<(100 μV + 6% of Volts/div Setting)
2
0 MHz bandwidth limit
<(100 μV + 6% of Volts/div Setting)
Delta Time
Measurement
Accuracy
The formula to calculate delta-time measurement accuracy (DTA) for a g iven instrument setting and input
signal is given below (assumes insignificant signal content above Nyquist)
SR
1
=SlewRate(1
st
Edge) around the 1
st
point in the m easurement
SR
2
=SlewRate(2
nd
Edge) around the 2
nd
point in the measurement
N = input-referred noise (volts
rms
, Refer to the Random Noise, Sample acquisition mode specification)
t
sr
= 1/ ( Sample Rate)
TBA = timebase accuracy (Refer to the Long-term sample rate and delay time accuracy specification)
t
p
= delta-time measurement duration (sec)
RD = (Record Length) / (Sample Rate)
166 MSO3000 and DP O3000 Series Oscilloscopes User Manual
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