Tool/software:
Hi,
We plan to use the INA745B in an industrial battery powered device and i have a question regarding input power draw on the high voltage side when the device is powered off.
Figure 6-6. High-Voltage Input Multiplexe shows a fixed voltage divider from Vbus to GND, Zbus is specified 1MOhm (in 5.5) under the condition "device enabled with active conversions".
If I understand 6-6 correctly, the impedance shouldn't get lower than 1MOhm if the digital supply is off but I couldn't find any specific information in the datasheet.
Is there an estimated Zbus for this situation? Can we assume that the impedance does not drop below 1M?
Thank you,
Lukas
