Electronic system comprising a sensor structure and an analog interface connected thereto with sensor independent operating range
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United States of America Patent
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Mar 17, 2015
Grant Date -
Feb 7, 2013
app pub date -
Aug 1, 2012
filing date -
Aug 2, 2011
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Abstract
An electronic system comprises a resistive sensor structure and an electronic circuit portion whose design is selected such that different resistive sensor structures may be combined within the same electronic circuit. To this end, the resistive sensor structure is used as a voltage/current converter that provides input currents to a current amplifier, which in turn provides an amplified output voltage on the basis of a difference of the input currents. The operating range of the current amplifier is adjusted on the basis of a programmable current source irrespective of the configuration of the resistive sensor structure.
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