Sensor (transducer) will be useful physical signal is converted to electrical signals, such as: used for measuring the pressure of pressure resistance bridge, used to detect ultrasonic piezoelectric sensors and is used to measure the electrochemical unit of gas concentration, etc. Sensors generate electrical signals are small, and is a ideal state, for example: the temperature drift and nonlinear transfer function, etc.

Sensor analog front end (e.g., Texas instruments LMP91000) and sensor signal conditioner (for example: Texas instruments PGA400/450), used in the sensor produced by the small signal amplifier to available levels. PGA400/450 contains the complete signal regulating circuit, and can stimulate the sensing element, management power and some of the circuit connected to the external controller. In addition, such as PGA400 device can also be the ideal state of these sensors calibration.

Multimodal signal conditioning

Usually, in order to achieve the signal conditioning or higher level of monitoring, we need to multiple sensor output measurements. Processing, for example, a typical output pressure resistance bridge, asked the bridge and the output of the temperature sensor is measured at the same time. Similarly, handling the output of the thermocouple, requirements to the temperature of thermocouple and measure the connector at the same time the output of the sensor measurements. Is the purpose of measuring the connector temperature cold junction compensation. The same signal regulator to deal with multiple sensors is referred to as "multimodal signal conditioning.

Mixed signal signal conditioning

Another aspect of sensor signal conditioning is electric field signal conditioning. Texas instruments PGA309 device of the resistance of the bridge sensor signal conditioning in simulation domain. In such as PGA400 device, signal conditioning occur simultaneously in analog and digital domain. The latter is called the "mixed signal signal conditioning".

A key component of mixed signal controller is a digital converter (ADC). Before the signal to achieve intelligent compensation module, two sensors are always independent signaling pathways. Later, the module combination of these two signals, to produce the output of the after processing.