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Smart Temperature Transmitter Reference Design

Overview

The smart temperature transmitter evaluation kit has the characteristics of high accuracy, signal isolation, LCD display, support for HART protocol, loop power supply, interface protection, etc. This platform is mainly based on ADI's multi-channel ADC with self-checking function and EPSON's Ultra-low power consumption 16-bit MCU implementation. The main IC of this design uses ADC7124-4, which integrates a 24-bit Σ-ΔADC, buffer and PGA (programmable gain amplifier). The transmitter can convert the temperature (standard thermal resistance or thermocouple) signal into a 4-20mA signal, which is output by the power supply loop.

ADI offers you:

Hardware design documents (schematic, PCB and BOM)
User manual

The picture on the right is a physical picture of the circuit board

Blockdiagram

Design Files

Download the complete resource package

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-20 16:37:57

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