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.
Best Regards,
Wei-Hao
Hello Wei-Hao,
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.
