Other Parts Discussed in Thread: TINA-TI, LMH6552
Hi,
I have an unipolar signal with a swing between 0V and 1.3V and I need to convert it in differential (Common mode 1.575V +/- 0.675V on each output). I'm trying to design a circuit to do this (I want for 0V in input, positive signal output at 2.2V and negative at 0.9V and the opposite for 1.3V).
I designed the circuit below. It seems to work correctly but it is not perfectly equilibrated. For exemple, I have 2.2V / 0.9V in one output and 2.22V / 0.9V in the other so I have an offset of 20mV in the differential output.
Is sombody have a better circuit or a way to modify my design to be more equilibrated?
Thanks a lot
Regards
Matthieu Baque