PGA Operation | Cypress Semiconductor
Using a PGA to buffer a small signal before input to a mux and ATD. The part is configured to use Internal Vss.
In the program, I accidently forgot to turn it on via PGA_Start() yet it does give me a directly proportional output with a range that is repeatable and can be calibrated. If the part is turned on, then the dynamic range is reduced to an unusable range, though the ATD count is much higher.
Is the part actually in a low power state and receiving power if I fail to do a PGA_Start()?