Overview
The AD590KF/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 AD590KF/883B operates within a wide temperature range of −55°C to +150°C and is calibrated to produce 298.2 μA output at 25°C (298.2 K). Its high impedance current output and the absence of the need for linearization circuitry, precision voltage amplifiers, or cold junction compensation make it an attractive choice for many temperature measurement scenarios.
Key Specifications
| Parameter | Min | Typ | 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 | ||
| Package/Case | 2-Lead Flatpack |
Key Features
- Linear current output: 1 μA/K
- Wide temperature range: −55°C to +150°C
- Probe-compatible ceramic sensor package
- 2-terminal device: voltage in/current out
- Laser trimmed to ±0.5°C calibration accuracy (AD590M)
- Excellent linearity: ±0.3°C over full range (AD590M)
- Wide power supply range: 4 V to 30 V
- Sensor isolation from case
- Available in various packages including 2-lead FLATPACK, 3-pin TO-52, 8-lead SOIC, and die form
Applications
- Temperature measurement in various environments
- Temperature compensation or correction of discrete components
- Biasing proportional to absolute temperature
- Flow rate measurement
- Level detection of fluids
- Anemometry
- Remote sensing applications due to high impedance current output
- Hybrid circuits and fast temperature measurements in protected environments
Q & A
- What is the AD590KF/883B used for?
The AD590KF/883B is used as a 2-terminal integrated circuit temperature transducer, producing an output current proportional to absolute temperature.
- What is the operating temperature range of the AD590KF/883B?
The operating temperature range is −55°C to +150°C.
- What is the nominal current output at 25°C?
The nominal current output at 25°C (298.2 K) is 298.2 μA.
- What is the calibration accuracy of the AD590KF/883B?
The calibration accuracy is typically ±5.0°C at 25°C, though some models like the AD590M have an accuracy of ±0.5°C.
- What are the available package options for the AD590KF/883B?
The device is available in 2-lead FLATPACK, 3-pin TO-52, 8-lead SOIC, and die form.
- What is the power supply range for the AD590KF/883B?
The power supply range is from 4 V to 30 V.
- Is the AD590KF/883B suitable for remote sensing applications?
Yes, it is particularly useful in remote sensing applications due to its high impedance current output.
- What are some common applications of the AD590KF/883B?
Common applications include temperature measurement, temperature compensation, biasing proportional to absolute temperature, flow rate measurement, and level detection of fluids.
- Does the AD590KF/883B require additional circuitry for temperature measurement?
No, it does not require linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, or cold junction compensation.
- Is the AD590KF/883B available for production?
Yes, the AD590KF/883B is in production.
