jackinnj said:
In what respect "wow"? I can not see anything particularly interesting from the datasheet. Perhaps it may sound good in some appliciations but that only a listening test can tell.
Alex
This opamp spec sheet looks fantastic. BTW, can it drive a 32ohms headphone or is it good for an opamp based power amp since the current output is +/-100mA.
Thanks.
Thanks.
The performance is similar other CFB opamps like the TPA6120 but since I like CFB it looks wow. 😱
It's a good point but also quite irrelevant because it's a CFB topology which is useless for high impedance network, it's against it's nature. In this case Tim, you must do you homework about CFB amps.Tim__x said:
I understand how CFB works. Look at page 6, good stability appears to require at least a couple Kohms of feedback resistance.
This CFB opamp is optimized for slightly higher values in the feedback network than many other opamps. It's not a huge concern, but it is a valid and considered complaint.
This CFB opamp is optimized for slightly higher values in the feedback network than many other opamps. It's not a huge concern, but it is a valid and considered complaint.
I don't see the point. 1.2kOhm isn't the issue I think.
The slew rate is extraordinary.
I would test how it sounds in a preamp but National wants 30$ for 4 sample chips!
Anyone just tried it?
The slew rate is extraordinary.
I would test how it sounds in a preamp but National wants 30$ for 4 sample chips!
Anyone just tried it?
1.2Kohm would be an issue, if u multiple it with 16pA/rtHz current noise density. But that's the case only when gain is low.
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