We are using the amplifier ADA4807-2 as an integrator. The ADA4807 is powerd from 6V. As an integrator the output is saturated to the rails. In our circuit it seems that the current consumption without any load increases with a few milliammperes when the output saturates to the rails. Is this behaviour as expected for this amplifier?
An LTSpice simulation of our circuit does not show increased current consumption when the output saturates to the rails.
The behavior would be normal for the amplifier when saturated, just make sure it doesn't suck up much current that might potentially damage the amplifier. When this happens, something's wrong with the connections or setup. This phenomenon could not be seen in simulations since the SPICE wasn't modeled to work that way (part in saturation). Could you share how your measurement setup works? Thanks.
Thank you for the quick response.
We will change the circuit where we are using the ADA4807 so it will never go into saturation.
Typical for most RR output op amps. See: