Opamp sound: 24v (+-12) LME49720 or LME49860?

Dario Sulpizio

Other Parts Discussed in Thread: LME49860, LME49720

I have an Audiotrak Dr.Dac3 and I want to change the opamp on I/V state, LPF filter and buffer.
The opamp circuit is on 24V then I looked at LME49720 but audiotrak mounted LME49860 on the new cube (only 10v (+-5)!!!!) and a lot of people say 49860 have a better sound. It's true and it's really better even on my 24v circuit?

over 9 years ago

0 Andy Liu (BMS) over 9 years ago

TI__Guru 52115 points

Hi Dario,

The LME49720 and LME49860 are very identical to each other in terms of input noise density, slew rate and gain bandwidth. Both of them were designed for high end audio market. One difference between those two is that the LME49860 has a higher operating voltage.

Andy

0 Dario Sulpizio over 9 years ago in reply to Andy Liu (BMS)

Prodigy 20 points

Thank you, I already read the datasheets but people and audiotrak put me the doubt. Then, for my circuit at 24v, lme49720 it's better? or it's the same?

0 Andy Liu (BMS) over 9 years ago in reply to Dario Sulpizio

TI__Guru 52115 points

Hi Dario,

I think you could choose either of them. They should be same for you.

Andy

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Opamp sound: 24v (+-12) LME49720 or LME49860?