Other Parts Discussed in Thread: OPA313,
Hi,
I am looking into the circuit design of INA303. This part is very helpful for overcurrent protection with window comparator integration.
In INA303EVM design, the reference voltage divider is fed to REF pin with OPA313 buffer. The datasheet also tells that low-value resistor divider could also be used to eliminate the buffer stage. I am looking into the relationship between divider resistance values and output accuracy. Would there be any explicit requirements for the source impedance, i.e. the resistance of the voltage divider?
Thanks for your help!