Electricity: measuring and testing – Plural – automatically sequential tests
Patent
1986-02-13
1988-03-22
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Plural, automatically sequential tests
371 27, G01R 1925
Patent
active
047331674
ABSTRACT:
A device for evaluating the accuracy and dynamic response of a digital to analog converter (DAC). A digital word generator which provides inputs to the DAC and a sampler which samples the analog output signal from the DAC are triggered by a stream of clock pulses. Clock pulses for the sampler pass through a fixed delay line, to provide time for the DAC to stabilize. Clock pulese for the digital word generator pass through a pulse swallower capable of eliminating clock pulses to phase shift the digital word input to the DAC one step with respect to the sampler trigger signal, to move the sampling point to the next step in the cycle of the digital input waveform.
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patent: 4497056 (1985-01-01), Sugamori
"Digital Phase Shifters", by Paterson, The Marconi Review, 3rd Quarter 1973, pp. 193-199.
"Troubleshooting Large-Scale Integrated Circuit Units", by Howe et al, IBM Tech. Disc. Bull, vol. 17, #7, 12/74, pp. 1941-1944.
"Testing Digital-to-Analog Converters", by Beaven, IBM Tech. Disc. Bull., vol. 24, #1A, 6/81, pp. 224-225.
Burns W.
Eisenzopf Reinhard J.
Hewlett--Packard Company
Williams James M.
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