Technical data

Calibration Procedures 1

Performance Verification Tests

U8030A Series Service Guide 15

6 Configure the differential amplifier as follows.

• Enable the AC mode (positive and negative) to remove

the DC component

• Enable the differential mode

• Set the gain to ×10

• Set the attenuation to 1

• Set the low- pass filter to 20 MHz bandwidth limit to

filter out input signals that contain higher frequencies

• Enable the zero precision voltage generator

• Set the input impedance to 50 Ω

7 Configure the scope as follows.

• Set the time range to 50 ms (20 Hz)

• Acquire every single sample at the maximum sampling

rate and retain only the minimum and maximum values

in a “sampling region” (50 ms time range)

• Enable the 20 MHz cut- off frequency for better high

frequency cut- off

• Enable AC coupling

• Enable auto- triggering

8 Allow the scope run for a few seconds to generate enough

measurement points.

9 Obtain the maximum peak- to- peak voltage measurement

as indicated in the scope. Divide this value by 10 to get

the CV peak- to- peak noise measurement. The result

should not exceed

• 10 mV

for U8031A and U8032A, and

• 50 mV

for Output 3.

10 Configure the RMS voltmeter as follows.

• Set the high- pass filter to 10 Hz

• Enable AC coupling