I have the following DAC output stage in a design I'm working on, which takes the differential outputs of a DAC to create an unbalanced audio signal, 5.7Vpp.
For the R and C I would like to use 0402 chip capacitors and resistors. How do I figure out the required watts for the resistors and if the standard 1/16 watt power rating will be adequate?
The differential inputs to the stage are 2.8Vpp signals centered around 5V.
I'm not an everyday user of opamps, but have used TINA-TI by texas instruments to simulate the stage to make sure it works (i.e. that it has the current gain and frequency response).
The circuit is powered by +14/-14V rails and I did put an amp meter in the simulation software on the rails, which gave me 4mA both for each of the rails, but that doesn't tell me everything?
I also have a second (similar) version of the below circuit in which I want to use the opa1622 headphone amplifier opamp to drive headphones, and there this question will be even more important since that opamp is capable of outputting a lot more power than the ne5532.