Can provide some solutions? Sensor resistance of 350 ohms, 4-20mA loop, ADUC7060.AD5421 . ADUC7061 internal PGA excessive power dissipation.
I'm not sure what you mean by "provide solutions" but you may find the following circuit note helpful:
Please also note that the AD5421 will provide greater accuracy and is fully specified over the temperature and supply "out of the box". Also, note that the AD5421 incorporates most of the external circuitry relating to the 4-20mA loop on the circuit note above, including a flexible regulator output which can provice voltages from 1.8V to 12V.
Retrieving data ...