0-10 V analog output / use of buffer

Hell0,

I need general guidance for this problem.
I am interfacing with a laser controller and need to provide a 0 to 10V voltage to control the laser power.
I am thinking about using fast pwm, filtered by a low pass filter, along with a 2x non inverting op amp configuration to get 0 to 10v.
I can live with 255 step resolution for this application.
My question is on using a transceiver/buffer to interface with the device, to isolate both circuits.
Can anybody help me with the selection of the buffer ?

You need an analog level to the laser, not a PWM signal?
Use a single transistor, lowpass filter its output.

My question is on using a transceiver/buffer to interface with the device, to isolate both circuits.

A transceiver/buffer is a digital thing and it does not provide isolation. If you want isolation then put the PWM signal through an opto isolator before sending it to the transistor and filter.

Isolation is not really needed tho - just separation of the positives of the power supplies.