POPCORN_NOlSE_TESTER

Published:2009/7/11 5:27:00 Author:May | From:SeekIC

Developed at Intersil to test opamps for erratic low-frequency jumps between two or more stable states. After start-up switch S is closed, pass/fail lamps are inhibited by Q3. At end of preselected test time (typically 5 s), one of lamps will come on. If output from difference amplifier exceeds preset fail level at inverting input of comparator during test period, fail lamp is turned on by Q2. Q4 prevents triggering of latch by spurious signals after end of test time.-T. P. Rigoli, IC Op Amps, EDNMagazine, May 1, 1971, p 23-33.



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