应用功能：2-Wire, Current OutputTemperature Transducer The AD590 is an integrated-circuit temperature transducerwhich produces an output current proportional to absolute temperature.The device acts as a high impedance constant currentregulator, passing 1mA/oK for supply voltages between +4V and +30V. Laser trimming of the chip's thin film resistors is used tocalibrate the device to 298.2mA output at 298.2oK (25oC).
