I have an inverting op amp stage that is summing various control voltage sources. I would like to limit the resulting sum to a symmetric range (e.g. +/- 5v).
The op amp is powered off +/-12V.
One idea was to find a true rail-to-rail, dual supply opamp for which the output symmetrically swings withing mV of the supply. So far I have not been able to find something suitable.
Another option is to use schottky clamping diodes on the outputs and reference them to a + and - voltage (in which case I will need to add regulators to supply the reference voltages).
I am trying to solve this with the least amount of parts possible.
This seems like it would be a common problem. What are the most conventional solutions to this?
The op amp is powered off +/-12V.
One idea was to find a true rail-to-rail, dual supply opamp for which the output symmetrically swings withing mV of the supply. So far I have not been able to find something suitable.
Another option is to use schottky clamping diodes on the outputs and reference them to a + and - voltage (in which case I will need to add regulators to supply the reference voltages).
I am trying to solve this with the least amount of parts possible.
This seems like it would be a common problem. What are the most conventional solutions to this?