Patent ID: 6154027
Filing Date: 2000-11-28
Classification: G01R

Abstract:
A Hall-effect device, comprising:a Hall-effect element having at least one input for receiving a bias signal and at least one output for providing an output signal dependent on the bias signal and a magnetic field intercepting the Hall-effect element;at least one output lead to provide an output signal responsive to the output signal of the Hall-effect element and dependent on an overall gain of the Hall-effect device; anda temperature-variable gain control circuit coupled to the Hall-effect element to adjust a sensitivity of the overall gain of the Hall-effect device to temperature changes, the temperature-variable gain control circuit including a pair of nodes and being configured such that, when a first component is coupled between the pair of nodes, changing a characteristic of only the first component alters a sensitivity of the overall gain of the Hall-effect device to temperature changes without altering the overall gain of the Hall-effect device when the Hall-effect device is maintained at a reference temperature.