Other Parts Discussed in Thread: , OPA1688
Could the OPA1622 be used with a single supply? I tried connecting +5V to the VCC of the OPA1622EVM and connected the VEE pin to the GND pin (and to the return of the power supply). The audio output does not seem to be amplified. If using two different power supplies, how do you suggest to power the OPA1622EVM?
Would the OPA1688 be a better amplifier for high-impedance headphones using a single supply? We are filtering (low pass) PDM differential audio and feeding into the OPA1688 (or other amplifiers) to convert differential to single ended for high impedance headphones.