Many manufacturers have made minor changes to the original design, however for the most part they are pinout equivalents, and the same formula for gain calculation applies.
However, you can make your budget stretch further if you look for cheaper equivalents.Īlmost all the modern 8-pin operational amplifiers take their architecture from the earlier 741 chip. The 741 is the one everyone thinks of when looking for a general-purpose amplifier, however, if you rely too much on the same chip and seller, then they will sometimes artificially hike up their prices.
Some chips have been getting expensive due to students relying too much on one model and manufacturer. There are many 741 compatible chips readily obtainable however, the problem is that many students and colleges are not aware of the different manufacturers and the model numbers.
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