What is the significance of the Vcm vs Vout graph.
I am planning to use the INA826, and I stumbled upon a post
https://www.edaboard.com/showthread.php?361259-Problem-with-Instrumentation-amplifier-Gain-INA826 regarding the same amp where the user was experiencing variation in gain when the output voltage crossed a particular threshold.
I intend to use the same chip and would like to understand the Vcm vs Vout concept clearly before going ahead with the circuit.
I am planning to power the chip @ 3.3V single supply and a gain of around 25, input would be in the range of 30 to 120mV so at that gain I would expect the output to vary between 0.75V to 3V.
I am attaching the graphs below.