2. amps-preamps
  3. 172511-166307

TL074 vs.TL084?

Hello!

It seems that many people ask that the difference between TL074 and TL084.

In my opinion, They're all general-purpose operational amplifiers with JFET input. TL074 has a reduced input noise density of 18nV/Hz at 1kHz, compared to TL074. Other aspects are essentially the same, and if noise requirements aren't high, they can be immediately replaced.

But, this opinion I got referred to the comparison article below which I have seen before. 

Welcome for more discussions.

All the best !

Tips: https://www.utmel.com/components/tl074-op-amp-pinout-datasheet-and-tl074-vs-tl084?id=845

 

kakwu
fuzztone's avatar
fuzztone
5,600 posts
 

74 is different compared to 74?

Does that make life better or worse?

andypandy
49 posts
 

TL074 and TL084. old hat fet.

Look at AD827's much better, but other things have to be good sounding otherwise they will show up deficiencies. Andy

atmasphere's avatar
atmasphere
11,800 posts
 

@kakwu Generally speaking the older the opamp design, the less gain you can get out of it before it starts to have a 'sound'. Even with modern opamps the Gain Bandwidth Product they have makes it dicey asking for more than 20dB. With these older designs you'll want to run less than that if you are using them for audio purposes. If you do that you won't hear any differences between them at all other than noise.

fiesta75
1,378 posts
 

TL074's better, new ones are 20v/us. AD827's maybe better, but I'm using LM6172's which are 3000v/us. Not available in quads I don't believe, but you can modify circuit to accommodate.

More to discover