Linearity (Peak 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 peak 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 If the DUT model number is N1912A, then repeat this procedure for channel B.
4 The test will take a few minutes to complete.
5 The measurement result should be less than 0.8 and greater than –0.8. The
– This test can be performed manually via the commands:
NOTE
– No adjustment is available for this test if it fails (see
– For external traceability of the peak path linearity verification please refer to
Keysight N1911A/1912A Service Guide
optimum measurement result for this test is 0.
SERV:BIST:PEAK[1|2]:LIN 0
SERV:BIST:PEAK[1|2]:LIN:PERR?
(Refer to the programming guide for further details on the use of these
commands)
"Troubleshooting
Guide").
the Keysight N7832A Test Management Environment (TME) Software in
http://cal.software.keysight.com/
Performance Tests
Chapter 4,
for further information.
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