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Resistive Sensor Platform with IO‑Link

Overview

Sensors—such as strain gauges, RTDs, potentiometers, and more—require linearization and signal conditioning to enable accurate measurements and reduce computational complexity in MCUs. Due to a wide range of resistive sensors needed in a variety of application use cases, a scalable platform with the ability to interface with any resistive element enables easy and fast integration.

This sensor platform comprises a best-in-class sensor signal conditioner (SSC), ultra-low power processing, and an IO-Link interface to form a scalable system that can be easily integrated into various applications and use cases.

System Benefits​:

  • Optimized architecture with signal pre-processing on the SSC to reduce MCU load and provide additional headspace for other capabilities, such as HMI support, tare functionality, and more
  • High-performance, cost-effective, low-power µC system
  • Proven and robust IO-Link PHY that enables easy connection and system power for fast and easy integration and deployment

Block Diagram

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EU102: WEBLine.646Connector Line.471Diode - LEDSheet.482Sheet.483Sheet.484Sheet.485Sheet.486Darlington.651Sheet.488Darlington.254GroundSheet.491Sheet.492PowerPowerPowerConnector Line.494Diode - LED.495Sheet.496Sheet.497Sheet.498Sheet.499Sheet.500Darlington.651Sheet.502Darlington.254Ground.504Sheet.505Sheet.506EOCEOCEOCConnector LineConnector Line.444Connector Line.445Connector Line.447Connector ArrowPower CtrlPower CtrlPower CtrlSegment LCD Control GreenPAKSegment LCD Control GreenPAKSegment LCD ControlGreenPAKConnector Arrow.389Connector Arrow.3913.3V3.3V3.3VBi-directional.519Vertical Wire Bundle.520444Sheet.522Bi-directional.523Bi-directional.524Vertical Wire Bundle.525333Sheet.527Vertical Wire Bundle.528444Sheet.530Bi-directional.535Vertical Wire Bundle.536444Sheet.538Connector Line.541Diode - LED.542Sheet.543Sheet.544Sheet.545Sheet.546Sheet.547Darlington.651Sheet.549Darlington.254Ground.551Sheet.552Sheet.553MCU PowerMCU PowerMCU PowerSensor ElementSensor ElementSensor ElementStrain GaugeResistorResistor.99Resistor.100Resistor.101Sheet.632Sheet.633Sheet.634Sheet.635Sheet.636Sheet.637Sheet.638Connector 1.160.640LineConnector 1.160.642Line.643Connector 1.160.644Connector 1.160.645Bi-directionalIO-Link MasterIO-Link MasterIO-Link Master3.3V3.3V3.3VLine ArrowVertical Wire Bundle111111Sheet.747Line Arrow.749Bi-directional.794Horizontal Wire BundleCommunication Lines B.795222LCD/LED Segment DisplaySheet.802Sheet.803Sheet.804Sheet.805Sheet.806Sheet.807Sheet.808Sheet.809Sheet.810Sheet.811Sheet.812Sheet.813Sheet.814Sheet.815Sheet.816Sheet.817Sheet.818Sheet.819Sheet.820Sheet.821Sheet.822Sheet.823Sheet.824Sheet.825Sheet.826Sheet.827Sheet.828Sheet.829Sheet.830ONONONOFFOFFOFFSheet.833Sheet.834Sheet.835Sheet.836Sheet.837Sheet.838Sheet.839Sheet.840Connector 1.160EU102EU102EU102Sheet.843Sheet.788Circle.787Sheet.789Sheet.783Circle.754Circle.778Sheet.784Circle.754Circle.778Line Arrow.846Connector 1.160.847Sheet.848Sensor Signal ConditionerSensor Signal ConditionerSensor SignalConditionerVDDBVDDBVDDBINPINPINPVSSBVSSBVSSBINNINNINNI2CI2CI2CSheet.849IO-Link PHY with DC/DCIO-Link PHY with DC/DCIO-Link PHY with DC/DCSPISPISPIAUXAUXAUXCTRLCTRLCTRL3.3V Supply3.3V Supply3.3VSupplySheet.850MCUMCUMCUGPIOGPIOGPIOSPISPISPIUARTUARTUARTGPIOGPIOGPIOI2CI2CI2C

Segment LCD Control
- GreenPAK

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Application Note

Sensor Signal Conditioner

High-accuracy amplification and analog-to-digital conversion of differential or pseudo-differential resistive sensor signals.
Sensor Signal Conditioners (SSC/AFE)
Interface
Sensor Signal Conditioners (SSC/AFE)

MCU

RA Arm Cortex-M MCUs
RL78 Low-Power 8 & 16-Bit MCUs
RA Arm Cortex-M MCUs
RL78 Low-Power 8 & 16-Bit MCUs

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