Hello,
Recently evaluating A1 bidirectional reference as low side monitor of AC inductive 3 phase currents notice odd pulses on the output. The output has half wave pulses that an inline current clamp does not detect. Please elaborate what these DC pulses result from and why they are on the ends (red boxes)? Why does PWM rejection not clamp half wave pulses when REF1,2 are +1.65v bidirectional current mode? The REF1,2 pins are bus tied with two other INA reference inputs acting in parallel, could that causes 1/2 wave pulses?
It would seem 1/2 wave pulses are detected as unidirectional current flow but REF1,2 are again configured for bidirectional current detection.