Linearity (Average Path); Description; Equipment; Test Method - Keysight Technologies P Series Service Manual

Linearity (Average Path)

Description

Linearity over the full input voltage range of the measurement path is warranted
to provide assurance of instrument accuracy. This test measures Linearity by
using a calibration DAC and a calibration ADC (built into the DUT) to stimulate
and compare performance of the Average Path against the measurement ADC,
returning the worst case percentage error.

Equipment

– No test equipment required

Test method

1 Execute the internal linearity measurement procedure for Channel A.
2 Read back the result of the measurement from the DUT.
3 Repeat this procedure for Channel B.
4 The test will take a few minutes to complete.
5 The measurement result should be less than0.5 and greater than –0.5. The
– This test can be performed manually via the commands:
NOTE
– No adjustment is available for this test if it fails (see
Keysight N8262A Service Guide
optimum measurement result for this test is 0.
SERV:BIST:CW[1|2]:LIN 0
SERV:BIST:CW[1|2]:LIN:PERR?
(Refer to the Programming Guide for further details on the use of these
commands)
"Troubleshooting Guide").
Performance Tests
Chapter 5,
2
51