Overview
The AD590JRZ-RL, produced by Analog Devices Inc., is a 2-terminal integrated circuit temperature transducer designed to produce an output current proportional to absolute temperature. This device is particularly useful in temperature-sensing applications below 150°C, where conventional electrical temperature sensors are employed. The AD590JRZ-RL offers a wide temperature range of −55°C to +150°C and operates with a supply voltage between 4 V and 30 V. Its high impedance current output makes it suitable for remote sensing applications, and it is insensitive to voltage drops over long lines. The device is available in an 8-lead SOIC package, making it convenient for surface mount applications.
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 | ±2.5 | °C | |
| Absolute Error (Over Rated Performance Temperature Range) | ±10 | ±5.5 | °C | |
| Nonlinearity For 8-Lead SOIC Package | ±1.5 | ±1.0 | °C | |
| Forward Voltage (E+ or E–) | 44 | V | ||
| Reverse Voltage (E+ to E–) | −20 | V | ||
| Rated Performance Temperature Range | −55 | +150 | °C |
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.
- High output impedance (>10 MΩ) for excellent rejection of supply voltage drift.
- Electrically durable: withstands forward voltage up to 44 V and reverse voltage up to 20 V.
Applications
- Temperature measurement in various industrial and automotive applications.
- Remote sensing applications due to its high impedance current output and insensitivity to voltage drops over long lines.
- Temperature compensation or correction of discrete components.
- Biasing proportional to absolute temperature.
- Flow rate measurement and level detection of fluids.
- Anemometry.
Q & A
- What is the temperature range of the AD590JRZ-RL? The AD590JRZ-RL operates over a temperature range of −55°C to +150°C.
- What is the output current of the AD590JRZ-RL at 25°C? The nominal current output at 25°C (298.2 K) is 298.2 μA.
- What is the nominal temperature coefficient of the AD590JRZ-RL? The nominal temperature coefficient is 1 μA/K.
- What is the calibration error of the AD590JRZ-RL at 25°C? The calibration error at 25°C is ±5.0°C for AD590J and ±2.5°C for AD590K.
- What is the power supply range for the AD590JRZ-RL? The device operates with a supply voltage between 4 V and 30 V.
- Is the AD590JRZ-RL suitable for remote sensing applications? Yes, it is particularly useful in remote sensing applications due to its high impedance current output and insensitivity to voltage drops over long lines.
- What package type is the AD590JRZ-RL available in? The AD590JRZ-RL is available in an 8-lead SOIC package.
- How durable is the AD590JRZ-RL electrically? The device is electrically durable, withstanding a forward voltage of up to 44 V and a reverse voltage of up to 20 V.
- Does the AD590JRZ-RL require additional circuitry for temperature measurement? No, the AD590JRZ-RL does not require linearization circuitry, precision voltage amplifiers, resistance measuring circuitry, or cold junction compensation.
- Can the AD590JRZ-RL be used in hybrid circuits? Yes, the AD590 is available in die form, making it suitable for hybrid circuits and fast temperature measurements in protected environments.
