Abstract: A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.

Abstract: It is described a sensor system (100, 200, 300) comprising (a) a first sensor path (110) comprising a first sensing element (111) and a second sensing element (112) being connected in series between a first supply terminal (st1) and a second supply terminal (st2) and an intermediate node (in, in1) being provided in between the first supply terminal (st1) and the second supply terminal (st2), (b) a second sensor path (120) comprising (b1) a third sensing element (123) and a fourth sensing element (124) being connected in series between the first supply terminal (st1) and the second supply terminal (st2), wherein the third sensing element (123) is subdivided into a first third subcomponent (R3a) and a second third subcomponent (R3b) and the fourth sensing element (124) is subdivided into a first fourth subcomponent (R4a) and a second fourth subcomponent (R4b), (b2) a first reference node (rn1) being provided in between the first supply terminal (st1) and the second supply terminal (st2), and (b3) a second refer

Abstract: A low power, high dynamic range sigma-delta modulator comprises a quantizer followed by a digital integrator for generating an integrated digital signal from a quantized signal. The output of the digital integrator is coupled to a digital-to-analog converter in the feedback loop of the sigma-delta modulator.

Abstract: A low power, high dynamic range sigma-delta modulator comprises a quantizer followed by a digital integrator for generating an integrated digital signal from a quantized signal. The output of the digital integrator is coupled to a digital-to-analog converter in the feedback loop of the sigma-delta modulator.

Abstract: A device is for digitally processing an input signal that is susceptible to variations in signal strength. The signal (48) is analog to digital converted into a bitstream signal (47), the bitstream signal representing the input signal by consecutive digital values. The device has a signal strength detection circuit (32) for generating a control signal indicative for an overload condition in which the signal strength exceeds a input range of the analog to digital converter, e.g. a sigma-delta modulator. The signal strength detection circuit detects, in the bitstream signal, a sequence (49,50) of adjacent and equal digital values, the sequence having at least a predetermined length. The circuit detects the overload condition effectively and fast, avoiding the delay of signal strength detection in a digital processor.