Overview
The AD590JF/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. It operates within a wide power supply range of 4 V to 30 V and acts as a high impedance, constant current regulator, passing 1 μA/K. The AD590JF/883B is calibrated to produce 298.2 μA output at 298.2 K (25°C) through laser trimming of the chip’s thin-film resistors. This component is suitable for temperature-sensing applications below 150°C and is an attractive alternative due to its low cost and the elimination of support circuitry.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Voltage Range | 4 | 30 | V | |
| Nominal Current Output @ 25°C (298.2 K) | 298.2 | 298.2 | μA | |
| Nominal Temperature Coefficient | 1 | 1 | μA/K | |
| Calibration Error @ 25°C | ±5.0 | °C | ||
| Absolute Error (Over Rated Performance Temperature Range) | ±10 | °C | ||
| Nonlinearity (For TO-52 and FLATPACK Packages) | ±1.5 | °C | ||
| Operating Temperature Range | -55 | 150 | °C | |
| Package Type | 2-Lead Flatpack |
Key Features
- Produces an output current proportional to absolute temperature, with a nominal temperature coefficient of 1 μA/K.
- Operates over a wide power supply range of 4 V to 30 V.
- High impedance current output, making it suitable for remote sensing applications and insensitive to voltage drops over long lines.
- Available in various packages including 2-lead FLATPACK, 3-pin TO-52, and 8-lead SOIC.
- No need for linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, or cold junction compensation.
- Laser trimming for calibration to 298.2 μA output at 25°C (298.2 K).
Applications
- Temperature measurement in various industrial and automotive applications.
- Temperature compensation or correction of discrete components.
- Biasing proportional to absolute temperature.
- Flow rate measurement and level detection of fluids.
- Anemometry and remote sensing applications.
- Suitable for hybrid circuits and fast temperature measurements in protected environments.
Q & A
- What is the AD590JF/883B used for?
The AD590JF/883B is used as a 2-terminal integrated circuit temperature transducer that produces an output current proportional to absolute temperature.
- What is the operating voltage range of the AD590JF/883B?
The operating voltage range is from 4 V to 30 V.
- What is the nominal current output at 25°C?
The nominal current output at 25°C (298.2 K) is 298.2 μA.
- What are the typical applications of the AD590JF/883B?
Typical applications include temperature measurement, temperature compensation, biasing proportional to absolute temperature, flow rate measurement, and remote sensing.
- What packages is the AD590JF/883B available in?
The AD590JF/883B is available in 2-lead FLATPACK, among other packages like 3-pin TO-52 and 8-lead SOIC.
- Does the AD590JF/883B require additional circuitry for temperature measurement?
No, the AD590JF/883B does not require linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, or cold junction compensation.
- What is the calibration method used for the AD590JF/883B?
The device is calibrated using laser trimming of the chip’s thin-film resistors to produce 298.2 μA output at 25°C (298.2 K).
- What is the operating temperature range of the AD590JF/883B?
The operating temperature range is from -55°C to 150°C.
- Is the AD590JF/883B suitable for remote sensing applications?
Yes, the high impedance current output makes it suitable for remote sensing applications and insensitive to voltage drops over long lines.
- What are the advantages of using the AD590JF/883B in temperature measurement?
The advantages include low cost, elimination of support circuitry, and high accuracy over a wide temperature range.
