Tektronix AM 501 Instruction Manual page 18

Sine Wave Generator 10 Meg
© *O ©
0.01 uF AR > 10K
abs
= 50 2 Cable to
Differential Comparator
1616-15
Fig. 2-5. Operational amplifier connected to check Unity Gain
g. Connect a 50 cable from the AM 501 OUTPUT bne
connector to the differential comparator + input. Set the
volts/div switch to 0.5 V.
h. Check—that the output voltage is at least 1 volt peak-
to-peak (two division display).
i. Disconnect all cables, termination, patch-cord, and
components.
6. Check-Input Leakage Current. Leakage current
is less than 500 pA at 25°C, less than 2.0 nA at50°C.
a. Connect the 800, 100k, 100, 10 MQ, 1 uF
capacitor, and the SPST switch to the terminals of the
AM 501 as illustrated in Fig. 2-6.
2-8
Fig. 2-6. Operational amplifier connected to check Leakage
b. Connect a 50 cable from the AM 501 OUTPUT
connector to the differential comparator — input connec-
tor.
c. Set the time-base unit to 1 ms/div.
d. Set the differential comparator volts/div switch to
5V.
e. Position the trace display to coincide with the center
horizontal graticule line.
f. Check—that opening and closing the switch does
g. Disconnect all components.
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