Specifications
Table 1: Analog signal acquisition system specifications (cont.)
Characteristic Description
DC gain accur
acy
For 50 Ω,1MΩ, and 250 kΩ (250 kΩ checked indirectly):
±1.5%, derated at 0.100%/°C above 30 °C
±2.0%, derated at 0.100%/°C above 30 °C, 1 mV/Div setting
±3.0% variable gain, derated at 0.100%/°C above 30 °C
Offset range
Volts/div setting
1M input 50 input
1 mV /div to 50 mV/div
±1 V ±1 V
50.5 mV/div to 99.5 mV/div
±0.5 V ±0.5 V
100 mV/div to 500 mV/div
±10 V ±10 V
505 mV/div to 995 mV/div
±5 V ±5 V
1 V/div to 5 V/div
±100 V ±5 V
5.05 V/div to 10 V/div
±50 V Not applicable
Offset ranges,
minimum
For 50 path, 1 V/div is the maximum vertical setting.
The input signal cannot exceed Max Input Voltage for the 50 input path. Refer to the Max Input Voltage
specification for more information.
Position range ±5 divisions
Offset accuracy
±[0.005 × | offset – position | + DC Balance]
Both the position and the constant offset term must be converted to volts by multiplying by the appropriate
volts/div term.
Number of waveforms
for average acquisition
mode
2to512waveforms
Default of 16 waveforms
Measurement type
DC Accuracy (i n Volts)
Average of 16 waveforms ±[DC Gain Accuracy × | reading – (offset -
position) | + offset accuracy + 0.1 division ]
Refer to DC Gain Accuracy for temperature
derating information.
Delta Volts between any two averages of 16
waveforms acquired with the same oscilloscope
setup and ambient conditions
±[DC gain a ccuracy × | reading | + 0.05 div]
Refer to DC Gain Accuracy for temperature
derating information.
DC voltage
measurement
accuracy
average acquisition
mode
Offset, position, and the constant offset term must be converted to volts by multiplying by the appropriate
volts/div term.
The basic accuracy specifi cation applies d irectly to any sample and to the following measurements: High,
Low, Max, Min, Mean, Cycle M ean, RMS, and Cycle RMS. The delta volt accuracy specification applies to
subtractive calculations involving two of these measurements.
The delta volts (difference voltage) accuracy specification applies directly to the following measurements:
Positive Overshoot, Negative Overshoot, Pk-Pk, and Amplitude.
MDO4000 Series Specifications and Performance Verification 3
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