Tektronix 2465B Operator's Manual

Applications
Slew Rate
Slew rate is the slope of a signal in volts/second.
1. Display the siope of the signai over the largest practical span of horizontal
deflection and vertical deflection.
2. Activate 1/At and set the cursors to intersect the signal slope at points that
are separated by one volt or by a power-of-ten multiple or fraction of
one volt.
3. Interpret the frequency (Hz) readout as volts/second instead of
cycles/second (Hz). Multiply the result by the power-of-ten multiple of one
volt between the cursors. For example, if the cursors intersect the
waveform at points separated by one volt and the readout shows 173 kHz,
the slew rate is 173 V/ms. With 10 mV between cursors and 55.3 MHz
readout, the slew rate is 0.553 V/jus or 553 kV/s, etc.
Time Ratio (Duty Factor)
With Parametric Measurements
With the Parametric Measurements feature, duty factor can be measured by:
1. Displaying the signal on CH 1 or CH 2 and selecting only that channel
for display.
2. Pushing the MEASURE button.
3. Selecting WIDTH from the menu.
The oscilloscope will automatically scale amplitude and timing for the best
measurement. The pulse width and duty factor will both be measured and
displayed.
2465B/2455B/2445B Operators
3-13

Tektronix 2465B Specifications

General

Bandwidth	400 MHz
Channels	4
Vertical Sensitivity	2 mV/div to 5 V/div
Maximum Input Voltage	400 V (DC + peak AC)
Display	CRT
Trigger Modes	Auto, Normal, Single
Time Base Range	500 ps/div to 0.5 s/div
Rise Time	875 ps
Power Supply	48 to 440 Hz
Dimensions	495 mm