Hello,
I'm struggling a bit with adding a DC offset to a slow (100Hz) ac signal. I thought I could feed both signals through series resistors into the non-in verting input of a buffer amplifier, but when I simulate it on LTspice, my offset is low (1.4V rather than 2V) and my input signal is attenuated.
My simulation has a 2V voltage source for the offset, and 1Vp/100Hz sine wa ve as the signal source
I did the same circuit but added a feedback resistor and a resistor to grou nd to the buffer op-amp, and it behaved correctly
But when I tried swapping out my 2V source with a 2V reference voltage in t he simulation, my waveforms got all distorted
below is a link to what I'm simulating:
Can someone tell me where I'm going wrong?
Much thanks!