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This user guide describes the EVAL-AD590-ARDZ evaluation board hardware and software and includes detailed schematics and PCB layout artwork. This evaluation board is simple, easy-to-use platform which allows direct evaluation of the AD590 analog temperature sensor.
The AD590 is a 2-terminal integrated circuit temperature transducer that produces an output current proportional to absolute temperature. Requiring supply voltages between 4V and 30V, the device acts as a high impedance, constant current regulator passing 1μA/K. Laser trimming of the chip’s thin-film resistors is used to calibrate the device to 298.2μA output at 298.2K (25°C).
The software is designed to be simple and straight forward to use. Select which sensor you would like to use, whether you want to use the internal sensor or a remote one and then simply enter a number corresponding to the required command and follow the on-screen prompts. Refer to software manual EVAL-AD590-ARDZ Mbed Example [Analog Devices Wiki] for more detailed information.