Circuit for correcting sensor temperature characteristics

A sensor amplification circuit coupling to a sensor generating a signal having a predetermined temperature characteristic and to a temperature characteristic correction circuit correcting the temperature characteristic of the signal, wherein the temperature characteristic correction circuit includes a plurality of correction signal generation units generating a plurality of correction signals characterized by different temperature to voltage change rates, in which the one of the plurality of correction signals having the lowest voltage or the one of the plurality of correction signals having the highest voltage is generated as an adjustment signal correcting the temperature characteristic of the signal at a given temperature, the sensor amplification circuit comprising:

• an amplifier correcting the temperature characteristic of the signal generated by the sensor with the adjustment signal generated by the temperature characteristic correction circuit and amplifying the corrected signal.

A temperature characteristic correction circuit correcting a temperature characteristic of a signal, the temperature characteristic correction circuit comprising:

• a voltage generation unit generating a plurality of correction signals characterized by different temperature to voltage change rates;
• and
• a non-inversion amplification circuit, coupled to the voltage generation unit, generating the one of the plurality of correction signals having the lowest voltage or the one of the plurality of correction signals having the highest voltage as an adjustment signal correcting the temperature characteristic of the signal at a given temperature.