Table 13: Equipment Settings For X100, 10 Khz Cmrr Checks - Tektronix ADA400A Instruction Manual

ADA400A Differential Preamplifier
2. Connect a coaxial cable from sine wave generator trigger output to Ch4 of
the oscilloscope.
3. Connect dual input connector to inputs of ADA400A.
4. Connect 50 Ω terminator to dual input connector.
5. Connect two 10X attenuators to 50 Ω terminator.
6. Connect a coaxial cable from sine wave generator output to 10X attenuators.
7. Adjust trigger level for a steady display.
8. Adjust the amplitude of the sine wave generator for 5 divisions on screen.
9. Remove the two 10X attenuators and connect the cable directly to the 50 Ω
terminator.
10. Set ADA400A '- -' input to DC.
11. Set oscilloscope to 1 mV/div.
12. Measure signal is ≤ 1 division (1 mV, 60 dB).
13. Modify the equipment settings according to Table 13.

Table 13: Equipment Settings for X100, 10 kHz CMRR Checks

ADA400A
Upper Bandwidth
Oscilloscope
Vertical gain
Time base
Sine Wave Generator
Output
14. Set '- -' input to GND.
15. Do steps 5 to 10.
16. Set oscilloscope to 10 V/div. Measure trace is < 3.2 divisions wide (32 V,
90 dB).
17. Modify the equipment settings according to Table 14.
Performance Verification
Setting
100 kHz
Setting
2 mV/div
50 s/div
Setting
10 kHz
35