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Adjustments

Analog Bus ADC Calibration

4-8

Analog Bus ADC Calibration

Description

This adjustment is used to calibrate the gain of the ABUS. The ABUS is connected to the ground node

(ACOM) and the ADC is zeroed. The ABUS is then connected to the 10 V reference and measured. The result

of the measured value divided by the ideal value is the ABUS gain calibration constant. This value is then

saved in the signal generator’s firmware.

Required Test Equipment

• Agilent 3458A Option 002 digital multimeter

Procedure

Figure 4-2 Analog Bus ADC Calibration Setup

1. Connect the equipment as shown above.

2. Preset all of the equipment.

3. Follow the instructions as they appear on the controller’s display.

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