[sdiy] Faster LM358 / LM324 replacement

[sleepy_dog at gmx.de]

Tim Ressel wrote:
> what package?
Hah!
you just reminded me to add LM324 to the title, which I now did.
As on the specific board laying before me, the quad version is used.

It's SOIC.

The circuit has about 1 gain.

- Steve

>
>
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> On 2/25/2018 1:30 PM, sleepy_dog at gmx.de wrote:
>> Hey,
>>
>> say, what opamp could I use as a faster replacement for the LM358?
>> Should be able to work with GND as negative supply and get the output 
>> (almost) there like the LM358.
>> Would be nice to have one that also can run up to +15V, but for my 
>> scenario at hand, 5V supply is enough.
>> And it would be nice to know one that's also not very expensive. It's 
>> probably hard to beat lm358 price... but let's not exaggerate ;)
>>
>> The application is an active filter to treat the DAC output for CV. 
>> Turns out the LM358 doesn't do such a good job there even at just a 
>> few kHz, i.e. the response curve starts to become less steep at the 
>> higher end quickly. (which even LTspice predicts, but I didn't bother 
>> to try the circuit with a LM358 model until now)
>>
>>
>> - Steve
>>
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>