Active probes
Active voltage probes often contain preamplifiers that provide high resistance and low capacitance at the probe tip. Some active
voltage probes contain differential amplifiers that provide high Common Mode Rejection Ratio (CMRR).
Active current probes often contain Hall-effect sensors that extend the probe bandwidth down to DC.
Many active probes, especially high frequency probes, can drive a 50 Ω instrument input.
Amplitude
This voltage measurement is the high value minus the low value measured over the entire waveform or gated region:
Amplitude = High – Low
Analog oscilloscope sweeps
Area
Area is a voltage-over-time measurement. The measurement is the area over the entire waveform or gated region expressed in
volt-seconds. The area above the common reference point is positive while the area below the common reference point is
negative.
Taking Automatic Measurements
ASin
Inserts the text ASIN( into the math expression.
ATan
Inserts the text ATAN( into the math expression.
Auto trigger mode
Auto trigger mode causes the instrument to trigger if a valid trigger event does not occur within a set amount of time.
Auto trigger mode is useful when probing DC signal levels such as power supplies or logic levels that are stuck high or low. It is
also useful when looking for activities on signal nodes such as oscillations when you first set up the instrument. The length of
time it waits for a trigger event depends on the time base setting.
B-Event scan setup
B-Event Scan is particularly useful for creating overlapped eye diagrams, and applies to all standard Pinpoint Trigger A- and B-
Events sequenced by Trig on nth Event in non-FastAcq mode.
The B-Event Scan initializes the Start Event value to 1 and the End Event value to 8. The Start Event must be less than or equal
to the End Event value. Advance After, advances the B-Event value after the given number of acquisitions have occurred
depending on the selected Advance method (Sequential, Random, and Toggle).
Oscilloscope reference
744 DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series
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