Table 10: Equipment Settings For Gain Checks - Tektronix ADA400A Instruction Manual

Input Resistance
ADA400A Differential Preamplifier
Equipment
Required
1. Set digital multimeter to measure resistance.
2. Connect banana-to-BNC adapter to digital multimeter.
NOTE. To avoid an erroneous resistance measurement, make sure the 1 MΩ input
resistance jumpers are installed.
3. Set ADA400A '+' input to DC.
4. Connect coaxial cable from '+' input of ADA400A to the BNC-to-banana
adapter on the multimeter.
5. Check input resistance = 1 MΩ ± 2% (980 kΩ to 1.02 MΩ).
6. Remove coaxial cable from ADA400A '+' input and connect it to the
'- -' input.
7. Set the ADA400A '- -' input to DC.
8. Check input resistance = 1 MΩ ± 2% (980 kΩ to 1.02 MΩ).
Gain
Equipment
Required
1. Connect the ADA400A to Ch1 of the oscilloscope and make the equipment
settings according to Table 10.

Table 10: Equipment Settings for Gain Checks

ADA400A Control
+ Input
- - Input
Gain
Upper Bandwidth
One digitizing oscilloscope (item 1) to supply power to the ADA400A
One digital multimeter (item 3)
One BNC female to dual banana connector (item 5)
One coaxial cable (item 9)
One digitizing oscilloscope (item 1)
One dual input coupler (item 6)
One calibration generator (item 4)
One coaxial cable (item 9)
Setting
DC
Gnd
100
100 kHz
Performance Verification
31