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Keithley 2657A User Manual

Keithley 2657A
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Section 3: Functions and features Model 2657A High Power System SourceMeter® Instrument Reference Manual
3-56 2657A-901-01 Rev. B/December 2012
Falling edge trigger mode
The falling edge trigger mode generates low pulses and detects all falling edges. The figure titled
"Falling edge input trigger" shows the characteristics of the falling edge input trigger; the figure titled
"Falling edge output trigger" shows the falling edge output trigger.
Input characteristics:
• Detects all falling edges as input triggers.
Figure 50: Falling edge input trigger
Output characteristics:
• In addition to trigger events from other trigger objects, the digio.trigger[N].assert() and
tsplink.trigger[N].assert() commands generate a low pulse for the programmed pulse
duration.
• An action overrun occurs if the physical line state is low and a source event occurs.
Figure 51: Falling edge output trigger
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Input Trigger
Pulse Duration
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Output Trigger

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Keithley 2657A Specifications

General IconGeneral
BrandKeithley
Model2657A
CategoryMeasuring Instruments
LanguageEnglish

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