Abstract: A ground fault detection circuit is configured to detect a ground fault in a circuit or system that has more than one ground reference. In an embodiment, an electronic circuit includes a first circuit coupled to a first ground node. The first ground node is coupled to a first ground reference. The electronic circuit also includes a second circuit coupled to a second ground node. The second ground node is coupled to a second ground reference. The ground fault detection circuit is configured to detect an open circuit between the first ground node and the first ground reference or between the second ground node and the second ground reference by comparing a voltage at the first ground node to a voltage at the second ground reference or comparing a voltage at the second ground node to a voltage at the first ground reference.

Abstract: A ground fault detection circuit is configured to detect a ground fault in a circuit or system that has more than one ground reference. In an embodiment, an electronic circuit includes a first circuit coupled to a first ground node. The first ground node is coupled to a first ground reference. The electronic circuit also includes a second circuit coupled to a second ground node. The second ground node is coupled to a second ground reference. The ground fault detection circuit is configured to detect an open circuit between the first ground node and the first ground reference or between the second ground node and the second ground reference by comparing a voltage at the first ground node to a voltage at the second ground reference or comparing a voltage at the second ground node to a voltage at the first ground reference.

Abstract: A digital to analog converter (DAC) circuit operates least significant bit (LSB) first.

Abstract: A cyclic analog to digital converter (ADC) circuit operates to convert an analog input voltage into a digital output word. The ADC circuit includes an amplifier and capacitors configured as an integrator.

Abstract: A converter continuously converts an input signal (110) to an output signal (112) even during correction and compensation. A primary converter (124) converts the signal along a forward primary path (104). A feedback converter (140) along a feedback path (106) outputs a feedback signal (116). A reference device (136) employs reference indicator (134) to provide a digital reference signal (135). A selection device (132) passes the digital reference signal (135) to an element (204) of the feedback converter (140) for outputting reference portion (208) of the feedback signal (116). The passing of the digital reference signal (135) to the element (204) is contemporaneous with the converting of the input signal (110) to the output signal (112). The evaluator (142) determines a conversion characteristic of the element (204) by employing a characteristic of the reference indicator (134).