Signal Conditioning

Typical sensor applications involve the monitoring of sensor parameters and controlling of actuators. The sensor signal chain, as shown below, consists of analog and digital domains. Typical sensors output very low amplitude analog signals. These weak analog signals are amplified, filtered, and converted to digital values using op amps, analog-to-digital, or voltage-to-frequency converters, and are processed at the MCU. The analog sensor output typically needs proper signal conditioning before it gets converted to a digital signal.