Table 14: Equipment Settings For X100, 100 Hz Cmrr Checks - Tektronix ADA400A Instruction Manual

Performance Verification
36

Table 14: Equipment Settings for X100, 100 Hz CMRR Checks

ADA400A
Upper Bandwidth
Oscilloscope
Vertical gain
Time base
Sine Wave Generator
Output
18. Set '- -' input to GND.
19. Do steps 5 to 10.
20. Set oscilloscope to 10 V/div. Measure trace is < 3.2 divisions wide (32 V,
90 dB).
21. Modify the equipment settings according to Table 15.
Table 15: Equipment Settings for X10, 100 kHz CMRR Checks
ADA400A
Gain
Upper Bandwidth
Oscilloscope
Vertical gain
Time base
Sine Wave Generator
Output
22. Set '- -' input to GND.
23. Do steps 5 to 10 but with only one 10X attenuator.
24. Set oscilloscope to 1 mV/div. Measure trace is < 1 division wide (1 mV,
60 dB).
25. Modify the equipment settings according to Table 16.
Setting
3 kHz
Setting
2 mV/div
5 ms/div
Setting
100 Hz
Setting
10
1 MHz
Setting
20 mV/div
5 s/div
Setting
100 kHz
ADA400A Differential Preamplifier