Description

The TIDA-00018 reference design enables faster development of high precision temperature measurement solutions using 24-Bit delta-sigma ADC and most widely used temperature sensors like thermocouple and RTD. The design guide will address the sensor signal conditioning: thermocouple cold junction compensation: ratiometric measurement technique for RTD: recommended software flow: sensor linearization: sensor diagnostics: transient protection: PCB layout and other practical design considerations for achieving high precision robust design for temperature measurement in industrial applications.  The Temperature Sensor Interface Module is a fully isolated design: which is essential for small sensor signal measurement. The heart of this reference design is a 24-Bit delta-sigma ADC that provides a high resolution: high integration: low noise: and low cost complete sensor analog front-end (AFE) for DC sensing applications. This ADC also makes it suitable to interface with different types of sensors: thus saving board space: reducing design efforts: decreasing the time to market: and lower BOM cost. Furthermore: external protection circuitry has been successfully tested for compliance with regulatory IEC61000-4 EFT: ESD: and surge standards. Compliance to IEC61000-4 is necessary to ensure that the design not only survives but also perform as intended in the harsh/noisy industrial environment.