Hi,
What is the best way to isolate an bipolar analog signal from a PC based Digital to Analog converter board
- Analog ( AC, Linear Optocoupling)
- An Op- amp ( unity gain , negative feedback circuit ) using the virtual ground system. Virtual ground does offer separation of the ground systems.
My signal generator circuit is producing a arbitrary signal ( +/-
1uVolts to +/- 10mV) and I want to electrically isolate it from national intrument's DAC board ( 6071E)...I have choosen HCNR 200 optocoupler and circuit from its data sheet. But still confused that which method is better. Any suggestions!
Thanks John