Overview
The AD592AN, produced by Analog Devices Inc., is a two-terminal monolithic integrated circuit temperature transducer. It provides an output current that is proportional to absolute temperature, making it a highly reliable and accurate temperature sensing solution. The device operates over a wide range of supply voltages from +4 V to +30 V and is designed to be used in applications where conventional temperature sensors such as thermistors, RTDs, thermocouples, and diodes are employed. The AD592AN is known for its high level output of 1 µA/K, excellent repeatability, and stability, along with minimal self-heating errors.
Key Specifications
| Parameter | AD592AN | Units |
|---|---|---|
| Operating Temperature Range | –25°C to +105°C | °C |
| Supply Voltage Range | +4 V to +30 V | V |
| Output Current | 1 µA/K | µA/K |
| Accuracy @ +25°C | 1.5 | °C |
| Nonlinearity Error @ 0°C to +70°C | 0.15 | °C |
| Nonlinearity Error @ –25°C to +105°C | 0.25 | °C |
| Package Type | 3-Lead TO-92 |
Key Features
- High Accuracy and Linearity: The AD592AN offers high accuracy and linearity over a wide temperature range, making it an ideal substitute for older sensor technologies.
- Wide Operating Temperature Range: The device can operate between –25°C and +105°C, making it suitable for various industrial and automotive applications.
- Single Supply Operation: It operates with a single supply voltage from +4 V to +30 V, simplifying the design and reducing the total parts count in any given application.
- High Impedance Current Output: The AD592AN is immune to voltage drops and voltage noise over long lines due to its high impedance current output, making it particularly useful in remote sensing applications.
- Electrical Ruggedness: The device is electrically rugged and can withstand supply irregularities and reverse voltages up to 20 V without damage.
- Easy Multiplexing: The signal current can be switched by a CMOS multiplexer or the supply voltage can be enabled with a tri-state logic gate, facilitating easy multiplexing.
Applications
- Appliance Temperature Sensing: Used in household appliances for temperature monitoring and control.
- Automotive Temperature Measurement and Control: Employed in automotive systems for temperature measurement and control.
- HVAC System Monitoring: Utilized in heating, ventilating, and air conditioning systems for temperature monitoring.
- Industrial Temperature Control: Used in industrial settings for precise temperature control.
- Thermocouple Cold Junction Compensation: Provides accurate compensation for thermocouple cold junctions.
- Board-Level Electronics Temperature Diagnostics: Used for temperature diagnostics in electronic boards.
- Temperature Readout Options in Instrumentation: Employed in various instrumentation for temperature readout options.
- Temperature Correction Circuitry for Precision Electronics: Used in precision electronics for temperature correction.
Q & A
- What is the operating temperature range of the AD592AN?
The AD592AN operates between –25°C and +105°C.
- What is the output current of the AD592AN?
The output current of the AD592AN is 1 µA/K.
- What is the supply voltage range for the AD592AN?
The supply voltage range for the AD592AN is from +4 V to +30 V.
- What are the key advantages of using the AD592AN over conventional temperature sensors?
The AD592AN offers high accuracy, linearity, and is immune to voltage drops and noise, making it a superior choice over conventional sensors like thermistors, RTDs, and thermocouples.
- Can the AD592AN be used in remote sensing applications?
Yes, the AD592AN is particularly useful in remote sensing applications due to its high impedance current output, which makes it immune to voltage drops and noise over long lines.
- How does the AD592AN handle supply irregularities?
The AD592AN is electrically rugged and can withstand supply irregularities and reverse voltages up to 20 V without damage.
- Can the AD592AN be multiplexed easily?
Yes, the AD592AN can be easily multiplexed using a CMOS multiplexer or by enabling the supply voltage with a tri-state logic gate.
- What are the typical application areas for the AD592AN?
Typical application areas include appliance temperature sensing, automotive temperature measurement and control, HVAC system monitoring, industrial temperature control, and more.
- What is the package type of the AD592AN?
The AD592AN is packaged in a 3-Lead TO-92 case.
- Is the AD592AN available in different performance grades?
Yes, the AD592 is available in three performance grades: AD592AN, AD592BN, and AD592CN.
