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| TL072 drop in substitutes? |
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| theleakydiode:
What are some part numbers of similar op amps I can substitute the TL072 for? I'm following a circuit I found online but don't have any TL072's in my bin, but I do have a random assortment of various other op amps pulled from stuff over the years (I've never really worked with them before). Its going to be running from a 12v single supply (max, I could drop it via a regulator) buffering an audio signal from a phone and adding a bit of gain before sending it off to the next stage. Thanks. |
| eblc1388:
Your description of the application do not point to the possibility that input pins will be getting very near or at positive supply voltage Vdd level. Therefore, I think many 8-pin Dual Opamps would do just fine. If in doubt, post the circuit here. |
| David Hess:
The TL082 is a direct replacement. The old LF353 is close also. In practice, most dual JFET input operational amplifiers will be acceptable. |
| Zero999:
A schematic would help. Going by the description of the application, " buffering an audio signal from a phone and adding a bit of gain before sending it off to the next stage", it really isn't critical: the NE5532 or dare I say it, even the crappy old µA741 would probably do. The only op-amp I would stay clear of is the LM358 which has a metric ton of crossover distortion, although that can be mitigated with pull-down resistors, on the output. |
| SiliconWizard:
Yes don't fret - your application seems absolutely NOT demanding whatsoever. Even an LM358 would be fine. It's a bit crappy distortion-wise, but has still been used in a ton of low-end audio circuits. The thing to check is that the replacement can be operated at +/-6V (Vcc-Vee = 12V). You didn't exactly say what kind of phone it is, but audio from a phone is not exactly hi-fi anyway. |
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