I need to control with my Arduino some galvanometers I bought. The galvanometer driver board says it need to have a +-5V asymmetrical analog input.
My Arduino is connected to a MCP4922-E/P DAC from Microchip through SPI. The output of the MCP4922-E/P is between 0 and +10V (it can be between 0 and +5V if I don't enable the x2 gain).
How can I "lower" that signal to be between -5V and +5V? I've read the it could be done with some op-amp, but not sure how.
Any other advice about the design is welcome. Thanks in advance.