Semiconductor integrated circuit and sensor driving/measuring system
AssigneePanasonic Corporation
InventorMitsutoshi Fujita
Life of this patent
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Abstract
In a sensor driving/measuring system, specifications required by a sensor which requires a high applied voltage are implemented with const increase suppressed. A semiconductor integrated circuit for use in a sensor driving/measuring system driven by a battery includes: a sensor driver for outputting a given voltage to be applied to a sensor; a measuring circuit for receiving and measuring a voltage obtained, through current-voltage conversion, from a current generated in the sensor; and a booster. The booster boosts a given pre-boost voltage to obtain a boosted voltage and supplies the boosted voltage as a power supply voltage to the sensor driver and the measuring circuit.
Claims7
A semiconductor integrated circuit for use in a sensor driving/measuring system driven by a battery, the semiconductor integrated circuit comprising:
- a sensor driver for outputting a given voltage to be applied to a sensor;
- a measuring circuit for receiving and measuring a voltage obtained, through current-voltage conversion, from a current generated in the sensor;
- and
- a booster for boosting a given pre-boost voltage to obtain a boosted voltage and for supplying the boosted voltage as a power supply voltage to the sensor driver and the measuring circuit.
Dependencies are inferred from the claim text.