As a continuation of the previously asked question and accepted answer Analog 0...10V signal splitting, I have a new question.
We implemented two analog buffers with LF353P and the rails are connected to 24V and 0V. We inserted the analog buffer between source and sink since the sink has capacitance on its input which affects our measurement. (Second analog buffer is redundant, but it can also be inserted between source and monitor)
The accepted answer works as intended with a slight problem. Signal coming out of the sink can reach 0V, and when the op-amp input signal is near 0V, the output from op-amp is at 22.#V which results in an error state in the sink.
My understanding is that this is because the input voltage is near the lower rail voltage of op-amp. If my reasoning is correct, the following circuit will be able to output 0V..10V (with both 0V and 10V being possible outputs):
Those batteries should be able to drive op-amp for a long time since the current needed by op-amp and sink is measured in mA. Is my reasoning and approach to the solution correct?