Replacing LM324N with Better Opamp

Thread starter m718
Start date Aug 5, 2009
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Opamp

AI Thread Summary

PNP input opamps can be replaced with NPN input ones, but it's important to consider the specific application requirements. A FET rail-to-rail opamp is recommended as a suitable replacement for the LM324N, offering improved performance. The PNP topology was historically used before the availability of high-quality FET opamps. Transitioning to a better opamp can enhance circuit efficiency and functionality. Selecting the right opamp depends on the desired specifications and application needs.

Aug 5, 2009

m718

Can PNP input opamps be replaced with NPN input ones?
I want to replace the LM324N with something better.

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Aug 5, 2009

berkeman

Admin

m718 said:

Can PNP input opamps be replaced with NPN input ones?
I want to replace the LM324N with something better.

A FET rail-to-rail opamp would be able to replace the 324. The PNP topology was just used for some applications before good FET opamps were viable.

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