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The AD8510 / AD8512 / AD8513 are single-, dual-, and quad-precision JFET amplifiers that feature low offset voltage, input bias current, input voltage...
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AD8512ARM supply pin floating

Tincy

on Jul 5, 2022

Category: Hardware

Product Number: AD8512ARM

Would you let me know what is the impact on -15V supply pin of AD8512 is floating? Is it electrically stress the IC?

Tags: Operational Amplifiers (Op Amps) amplifiers hardware ad8512 Low Input Bias Current Op Amps (≤100 pA) AD8512ARM Show More

0 jeanmika

on Jul 25, 2022 10:48 PM
Hello Tincy,

Generally, there are risks in leaving the supply pins on float in terms of power sequencing; the proper order is that the supplies of an op amp must first be established before an input signal is applied. If this isn’t followed, overvoltage and latch up conditions may occur.

A very insightful and detailed document by David Guo goes over the behavior of op amps given different conditions and cases, and what risks may arise if proper power sequencing is not followed; you may find the document here: https://www.analog.com/en/analog-dialogue/articles/improper-power-sequencing-in-op-amps-analyzing-the-risks.html

Hope this helps!

Regards,
Jean
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AD8512ARM supply pin floating