Amplifying circuit for e.g. lambda sensor, has operational amplifier, metal-oxide semiconductor field-effect transistor, multiplier, voltage dividers, resistors provided for adjusting voltage offset of output voltage based on input voltage

摘要

The circuit has an input (HO2S(XY)), where an input voltage with voltage range is applied from a negative lower to a positive upper voltage at the input. An output voltage is applied at an output (HEGOXI) and is provided with an amplification factor and a voltage offset opposite to the input voltage. An operational amplifier (S1900A), a metal-oxide semiconductor field-effect transistor (T1900), multiplier (R1904), voltage dividers (R1905, R1906), resistors (R1908) are provided for adjusting the voltage offset depending on the input voltage.