EVAL-CN0300-EB1Z

EVAL-CN0300-EB1Z is a CN-0300 circuit evaluation board. The circuit uses ADuCM360 precision analogue MCU in an accurate thermocouple temperature monitoring application and controls the 4mA to 20mA output current accordingly. The ADuCM360 integrates dual 24bit sigma-delta ADCs, dual programmable current sources, a 12bit DAC and 1.2V internal reference, as well as an ARM Cortex-M3 core, 126kB flash, 8kB SRAM, and various digital peripherals such as UART, timers, SPIs, and I2C interfaces. In the circuit, the ADuCM360 is connected to a Type T thermocouple and a 100 ohm platinum RTD. The low power Cortex-M3 core converts the ADC readings to a real temperature value. The Type T temperature range supported is −200°C to +350°C, and this temperature range is converted to an output current range of 4mA to 20mA. The circuit provides a complete solution for thermocouple measurements with a minimum requirement for external components, and it is loop powered for loop voltages up to 28V.

• 12-bit, 4-20mA loop-powered thermocouple measurement system using ARM cortex-M3
• Includes Analog Devices J-Link OB emulator (USB-SWD/UARTEMUZ)
• Provides complete solution for thermocouple measurements w/min requirement for external components