Analog Devices Inc. AD590MF/883B

The AD590MF/883B is a 2-terminal integrated circuit temperature transducer produced by Analog Devices Inc. This device generates an output current that is proportional to absolute temperature, making it highly suitable for various temperature-sensing applications. The AD590MF/883B operates within a wide temperature range of −55°C to +150°C and is characterized by its high impedance, constant current output of 1 μA/K for supply voltages between 4 V and 30 V. The device is calibrated to produce 298.2 μA at 298.2 K (25°C) through laser trimming of its thin-film resistors, ensuring high accuracy and linearity.

• Linear Current Output: 1 μA/K, ensuring a direct and proportional relationship between output current and temperature.
• Wide Temperature Range: Operates from −55°C to +150°C, making it versatile for various applications.
• Probe-Compatible Packages: Available in 2-lead FLATPACK, 3-pin TO-52, 4-lead LFCSP, 8-lead SOIC, and die form, providing flexibility in design and integration.
• High Accuracy and Linearity: Laser-trimmed to ±0.5°C calibration accuracy and ±0.3°C linearity over the full range for certain models.
• Wide Power Supply Range: Can operate with supply voltages between 4 V and 30 V.
• Sensor Isolation from Case: Ensures that the sensor is electrically isolated from the case, enhancing reliability and accuracy.
• Remote Sensing Capability: Insensitive to voltage drops over long lines due to its high impedance current output, making it suitable for remote sensing applications.

• Temperature Measurement: Ideal for any temperature-sensing application below 150°C, replacing conventional electrical temperature sensors.
• Temperature Compensation and Correction: Used for compensating or correcting discrete components based on temperature changes.
• Biasing Proportional to Absolute Temperature: Can be used to bias circuits in a manner that is proportional to absolute temperature.
• Flow Rate Measurement and Anemometry: Suitable for measuring flow rates and in anemometry applications.
• Level Detection of Fluids: Can be used for detecting the level of fluids based on temperature changes).
• Hybrid Circuits and Fast Temperature Measurements: Available in die form, making it suitable for hybrid circuits and fast temperature measurements in protected environments).

1. What is the operating temperature range of the AD590MF/883B?

   The AD590MF/883B operates within a temperature range of −55°C to +150°C).

2. What is the output current of the AD590MF/883B at 25°C?

   The output current at 25°C (298.2 K) is 298.2 μA).

3. What is the nominal temperature coefficient of the AD590MF/883B?

   The nominal temperature coefficient is 1 μA/K).

4. What are the available package types for the AD590MF/883B?

   The device is available in 2-lead FLATPACK, 3-pin TO-52, 4-lead LFCSP, 8-lead SOIC, and die form).

5. What is the calibration accuracy of the AD590MF/883B?

   The device is laser-trimmed to ±0.5°C calibration accuracy for certain models).

6. Can the AD590MF/883B be used in remote sensing applications?

   Yes, it is suitable for remote sensing due to its high impedance current output, which makes it insensitive to voltage drops over long lines).

7. What are some common applications of the AD590MF/883B?

   Common applications include temperature measurement, temperature compensation, biasing proportional to absolute temperature, flow rate measurement, level detection of fluids, and anemometry).

8. Does the AD590MF/883B require additional support circuitry?

   No, the AD590MF/883B does not require linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, or cold junction compensation).

9. What is the power supply range for the AD590MF/883B?

   The device can operate with supply voltages between 4 V and 30 V).

10. Is the AD590MF/883B electrically isolated from its case?

    Yes, the sensor is electrically isolated from the case, enhancing reliability and accuracy).