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What are the common failure modes of digital potentiometers?

April 26, 2017common digital failure modes potentiometers

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What are the common failure modes of digital potentiometers?

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1. Latch up can occur when the prescribed power-up sequence (VMDD->VMSS->GND->VA ->VB) is not followed. 2. A voltage greater than |VMDD – GND| or |VMDD – VMSS| (if dual-supply) applied across terminals A-B, W-B, or W-A can cause failure.