IEEE Journal of Solid-State Circuits · 1981 · 12 citations · 0 references
EngineeringElectrical EngineeringAnalytical ChemistryInstrumentationSensorsAnalog InstrumentationAnalytical InstrumentationAutomotive SensorsEnvironmental InstrumentationGas SensorsInstrumentation AmplifiersCmos Instrumentation Amplifier DesignInput Common-mode RangeInstrumentation AmplificationInstrumentation Amplifier DesignInstrumentation DesignOxygen SensingSensor Interface CircuitsWideband Instrumentation Amplifier Design
Describes an instrumentation amplifier, using standard bipolar processing, with an input common mode voltage range extending below the single supply ground to -1 V. The integrated circuit has the bandwidth and gain necessary to meet the particular requirements of amplifying the output of a zirconia dioxide sensor to continuously measure the relative amount of oxygen in the automotive exhaust. Gain is trimmed to /spl plusmn/1/4 percent accuracy using fusible aluminum links.