OP275 opamp replacement help.

[Extreme_Boky]

AD8066 for I/V conversion (with heat spreaders when used with + and - 15V). Brilliant and miles ahead of any other IC I tried, in particular speed (level of details), extension and resolution. They work reliably with + and - 15V supply which I tested now for more than a year in many CD players and DACs - but I fit them with little coper heat spreaders / heat sinks. They need to be decoupled properly though.

For all other tasks I use AD826 or LM4562.

All IC's I mentioned above can not be used on their own - they will only reveal many other weaknesses - which can result in bright tops and / or boomy base, so other sections will need attention as well.

But with all angles / bases covered, they will produce beautiful detail, excellent speed and natural sound.

Boky

 

[Glen1]

AD8066 for I/V conversion (with heat spreaders when used with + and - 15V). Brilliant and miles ahead of any other IC I tried, in particular speed (level of details), extension and resolution. They work reliably with + and - 15V supply which I tested now for more than a year in many CD players and DACs - but I fit them with little coper heat spreaders / heat sinks. They need to be decoupled properly though.

For all other tasks I use AD826 or LM4562.

All IC's I mentioned above can not be used on their own - they will only reveal many other weaknesses - which can result in bright tops and / or boomy base, so other sections will need attention as well.

But with all angles / bases covered, they will produce beautiful detail, excellent speed and natural sound.

Boky

Thanks Bocky,
Regarding all angles/bases being covered - what are your suggestions here?

 

[analog_sa]

They work reliably with + and - 15V supply which I tested now for more than a year in many CD players and DACs - but I fit them with little coper heat spreaders / heat sinks.

10% above absolute max ratings?! You are extreme indeed And lucky. Don't see how heatsinks can help with overvoltage. Under normal operating loads they don't even get hot. I also tried my luck and one didn't even last 3 months @14v per rail.

 

[Hercules]

I'm using MD-10, the Op-Amp working at +/- 20V, don't use AD8620!

I'm using LME49860, higher voltage model of LM4562 or LME49720, whatever you like, my trial with LM4562 with heatsink pleased me a lot, as nice as OPA627 x 2 trial on MD-10 using ugly adapter and wiring.

 

[Glen1]

Hercules,
I note you say you use a heat sink with the LM4562. Do you recommend using a heatsink?

 

[Hercules]

Hercules,
I note you say you use a heat sink with the LM4562. Do you recommend using a heatsink?

Not really, is I'm working the LM4562 over it's specification of +/-18V, at +/-20V, just adding the HS for extra safety.

 

[redjr]

Hi guys,

Know this is an old thread, but thought I'd ask... I don't remember reading if the LM4562 is a drop-in replacement for the OP275? I've got a thread started here about the AD1955 DAC and I'm looking for suggestions for upgrading the op amps as a first upgrade path. The LM4562 was mentioned. Google led me to this thread. I'm doing a bit more research on the 4562. Thx.