In a described example, a circuit includes a sensor circuit including multiple magnetic field sensors having respective sensor outputs. The magnetic field sensors are configured to provide magnetic field sensor signals at the respective sensor outputs representative of a measure of current flow through a conductive structure. A combiner interface has combiner inputs and a combiner output. The combiner inputs are coupled to the respective sensor outputs. The combiner interface is configured to provide an aggregate sensor measurement at the combiner output responsive to the magnetic field sensor signals, in which the aggregate sensor measurement is decoupled from magnetic fields generated responsive to the current flow through the conductive structure.