We are a software development company, and as the old Joke goes, How many software engineers does it take...... you know the rest. We require what we believe to be a simple amplifier circuit, and so are looking for the equivalent of us Geniei in the Analogue electronics field. We are willing to pay for this design. (As long as it works!). Say a few hundred US$. We can build the design and test it.
What we have is a waveform entering our AtoD converter at a high speed. The AtoD is very fast (500Meg) so is only low resolution, at 8 bit. Our waveform varies between 2.5 to 3.5V. The problem we have is that at 8 bits, it is not enough to re-structure the waveform as we have to set the AtoD to +/-5V. That gives us about 25 point range. What we would like to do, is linearly change the voltage to say 0 - 1V, or even better -1V to 1V we can then set the AtoD to a shorter voltage range giving us much better resolution. We are open to any suggestions, such as where we would be able to go and find such help. I have been told that an Inverting amplifier is what we need, not sure if this is the case. Obviously the circuit needs to be accurate, and fast.
Thanks
Wayne