Hi,
Can anyone let me know what's the value of the resistor in red circle in below photo?
Mine is dam1021 with a number 141021 which looks like a date?
Thanks
6K04 1% 0603. Your dam1021 is a rev1.
Hi
it is not asymetric... gain on inverted input is different formula as noniverted
...
I have extracted schematic for V4 output.
As far I can see it has asymmetric gain, 1,5 for positive raw and 1 for negative.
While it is possible to drive a balanced line with an unbalanced signal, I suggest to change negative feedback resistor on inverted opamp to 1,86K. This will increase gain for negative rail to 1,5, therefore balanced signal will be symmetric.
Regards,
Tibi
....