Overshoot & Transition Time Adjustment; Equipment; Procedure - HP 8112A Operating, Programming And Servicing Manual

Overshoot &
Transition Time
Adjustment

Equipment

Procedure

Oscilloscope (HP 54121T).
n
1. Set up the HP 8112A as follows:
Trigger Mode
Control Mode
P E R
DEL
D T Y
Transition
LEE
T R E
HIL
COMPL
DISABLE
LIMIT
2. Connect the HP 8112A main output to the oscilloscope input 4,
via two 20 dB attenuators (40 dB).
3. Connect the HP 8112A trigger output to the oscilloscope trigger
input via 20 dB attenuation.
4. Press (ZGZX].
5. Adjust AlR535 to give best slope linearity in both COMPL off
6. Set the HP 8112A as follows:
LEE
T R E
7. Set the oscilloscope as follows:
a. Full screen display (center one pulse horizontally and
vertically on the screen).
b. Number of averages to 64.
c. Attenuation factor to 100.
d. Select the Delta V and turn the voltage markers on.
e. Set VARIABLE LEVELS = 95 - 105% and press the Auto
Level Set.
f. Center the pulse top vertically (offset = 8 V).
g. Set V/div to 500 mV.
8. Adjust AlC530 for overshoot < 5% in normal and complement
modes.
NORM
Off
200 ns
65 ns
50%
Linear
15.5 ns
15.5 ns
- 8 v
Off
Off (=Enable)
Off
5.5 ns
5.5 ns
Adjustment Procedures 9-7