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hi
i need to replace in my presonus preampli n.2 mc33079 with TI opa1654 sound plus jfet op ampli
it is possible?
other opsions?
audio grade burr brown or what else..
maybe the new opa1689?
thanks
david
Hello David,
I have carefully compared the electrical specifications of the MC33079 and OPA1654. The OPA1654 will fit directly into the MC33079 application. The OPA1654 is a newer design JFET input op amp with higher performances; notably input bias current, total harmonic distortion + noise, and power consumption.The OPA1654 is only available in a 14-pin surface mount packages, while the MC33079 is also available in the older 14-pin DIP package. Do check to make sure your application can accommodate the surface mount package.
Unfortunately, the OPA1689 is not yet available.
Regards, Thomas
Precision Amplifiers Applications Engineering