Hello, the datasheet states that the inputs "need to be AC coupled to minimize the output DC-offset and ensure correct ramping of the output voltages during power-ON and power-OFF".
Is that absolutely necessary or one could use the amplifier in PBTL mode for DC-100 Hz bandwidth as a closed loop operated coil driver. I need a power efficient output stage that could drive a pair of coils (Helmholtz configuration, something like 10 Ohms, 50 mH). The feedback would be “magnetic” and the TPA3220 driven by an output of op-amp integrator (ideally 0-5V signal, 2.5V meaning zero current...)
Thank you for any info
