Impedence matching - high output to low input

[ErdenV2]

Hello,

I have PCIe-6351. I am using analog output of the card which is  designed for high impedence loads.

However, I need to connect that analog output to an input of a device which has 50 ohm impedence. 

What are the options for matching the impedence. 

Thanks! 

[johnsold]

You need an amplifier. The 50 ohm load requires more current (at any voltage above 0.25 V) than the AO line can provide.  At the maximum 10 V output of the AO, a 50 ohm load requires 200 mA.

The amplifier you select needs to be able to deliver at least the curretn required for the 50 ohm load and must have sufficient bandwidth for your signal.

Lynn