Hello!
I interfaced a sensor badly on my board and I have to fix it : (
I have an output voltage from a current sensor. It's output swing is as follows:
VCC/2 for no current,
VCC for full current.
How to shift those voltages to an differential ADC input, where I would like to get 0V for no current and 2,048V for full current? I want to discard anything below VCC/2. VCC = 5V. I can source a couple hundred mA from output (it's op-amp buffered).
Any suggestions for doing it in a simple way and not loosing those important mV above VCC/2?
Is a solution using an op-amp as here on page 25:
http://www.microchip.com/stellent/groups/SiteComm_sg/documents/DeviceDoc/en542976.pdfa good choice?