Isolation b/w DAC & Power amplifier

[masudasim1]

Hello

i am using NI DAC (6723) to drive QSC RMX 4050HD Power amplifier (PA). I am generating 1-5KHz sinusoidal signals from my DAC.

1- I need some isolation & signal smoothing b/w DAC & 2kWatt PA.

2- Secondly, NI DAC has current limitation of 5mA/channel. I also desire to boost this capacity to say (10mA/channel) with some IC b/w DAC output & PA input.


Can any one kindly suggest some type of analog isolation IC/transformer which can do this job?


Thanks

Best Regards
asim

 

[Hero999]

A simple op-amp buffer amplifier with enough drive capacity could be used to boost the current and an audio isolation transformer to provide isolation.

Is the gain critical?

How critical is the THD?

What are the isolation requirements: peak voltage, frequency?