If the link doesn't work, try Google with this search string: "rail-to-rail" op amps list. There are op-amps whose outputs are rated "rail-to-rail" and you might even find a simulation model for one or more of them. Once the systems integrator got over the steep learning curve and assembled a working system, it worked fine and lasted a long time without problems. The graphic user interface (GUI) was fairly sophisticated for its time, but NI products, whether hardware or software, were never exactly cheap nor inexpensive, but they were reliable. ![]() The LabView simulation software was a necessary part of the whole package, because IIRC that software was also used to "wire up" LabView hardware to make a working system. Years ago, in the previous century, the company I worked for purchased LabView hardware to facilitate building an analog data acquisition system. If money is a problem, there are plenty of free or inexpensive alternatives. ![]() It and similar SPICE-based software programs are yet another reason why I prefer actual circuits, made with real components, to software simulations. National Instruments (NI) LabView software is now available for free for non-commercial use by students and hobbyists.
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