![]() ![]() Looking at Figure 1, which triangle is the op amp? Which triangle is the comparator? And which triangle is the instrumentation amplifier? The answer is: As we shall see, there are some cases when you don’t even want to try to design with the wrong type of part. Let’s look at their differences and what to be cautious of so we can design around them if possible. You could force one of them to do the function of one of the others, but system performance would not be optimum. In the analog world, a triangle can represent an op amp, a comparator, or an instrumentation amplifier. This can lead to problems, as we shall see. Symbols are important, but what if the symbol can mean several things? It’s Just a Triangle, or What Does a Symbol Really Mean?ĭoes a symbol help or hinder our thinking about a design? ![]()
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