mohichail
Newbie level 2
![Newbie level 2](/styles/images/ranks/alevel2.gif)
Hi All,
I am using TLV 2781 Op amp. Rin=4.7k, and Rf=47k. When I put DC 1Mega Ohm coupling at output of the opamp,
I got correct DC offset. However, when the output DC coupling is 50 ohm, The DC offset drops by 80%.
I have seen the current at the output increases as the load decreases.
However, According to the theory, DC offset should not be dependent on the load.
How can I make an Opamp which will give me same DC offset for both 50 ohm and 1 mega ohm loading?
Thank you very much.
I am using TLV 2781 Op amp. Rin=4.7k, and Rf=47k. When I put DC 1Mega Ohm coupling at output of the opamp,
I got correct DC offset. However, when the output DC coupling is 50 ohm, The DC offset drops by 80%.
I have seen the current at the output increases as the load decreases.
However, According to the theory, DC offset should not be dependent on the load.
How can I make an Opamp which will give me same DC offset for both 50 ohm and 1 mega ohm loading?
Thank you very much.