VSUBPP_SUB_handshake_circuit

Published:2009/7/23 22:11:00 Author:Jessie | From:SeekIC

This circuit verifies that the VPP pulse generators (Figs. 6-49 and 6-50) are producing the correct output before pulsing begins. This is done by comparing the VPP output against the LT1004 reference. The LT1016 output goes low if the VPP output is correct. The resistor values shown allow for possible variations in VPP voltage because of component-tolerance stack-up. The output of the VPP generator should be set within 0.4% of nominal value when using this circuit. This can be done by trimming, or using 0.05% resistors in place of the 0.1% units specified.



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