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Part Number: INA194
Hi Support team experts,
My customer has a question regarding the power-up sequence regarding INA194. If supply of INA194 was established much slower than the input signals, will it cause damage on INA194. E.g. The +12V bus voltage already applied to Vin+ and Vin- but the V+ is still 0V.
Thanks a lot.
Thanks for reaching out on the forum. The VCM is specified independently of the supply as shown below. So the device should be able to handle a bus voltage while V+ is 0V. However, if anything drives the output far from the supply such as a mux or downstream SAR ADC then you could have issues. also if you have a split ground plane, with the load ground and device ground being different, that also could possibly present conditions that may adversely affect the device.
Patrick Simmons, TI Sensing Products Applications Support
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In reply to Patrick Simmons:
Thank you for explanation, it really helps.
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