Overview
The AD592CNZ is a two-terminal monolithic integrated circuit temperature transducer produced by Analog Devices Inc. It provides an output current that is proportional to absolute temperature, making it a highly accurate and reliable temperature sensing solution. The device operates over a wide range of supply voltages and is designed to replace older, more limited sensor technologies such as thermistors, RTDs, diodes, and thermocouples. With its high impedance current output, the AD592CNZ is particularly useful in remote sensing applications, as it is immune to voltage drops and noise over long lines.
Key Specifications
| Parameter | AD592AN | AD592BN | AD592CN |
|---|---|---|---|
| Accuracy @ +25°C | 1.5°C (min), 2.5°C (max) | 0.7°C (min), 1.0°C (max) | 0.3°C (min), 0.5°C (max) |
| Error over Temperature (0°C to +70°C) | 1.8°C (min), 3.0°C (max) | 0.8°C (min), 1.5°C (max) | 0.4°C (min), 0.8°C (max) |
| Nonlinearity (0°C to +70°C) | 0.15°C (min), 0.35°C (max) | 0.1°C (min), 0.25°C (max) | 0.05°C (min), 0.15°C (max) |
| Error over Temperature (-25°C to +105°C) | 2.0°C (min), 3.5°C (max) | 0.9°C (min), 2.0°C (max) | 0.5°C (min), 1.0°C (max) |
| Nonlinearity (-25°C to +105°C) | 0.25°C (min), 0.5°C (max) | 0.2°C (min), 0.4°C (max) | 0.1°C (min), 0.35°C (max) |
| Operating Temperature Range | -25°C to +105°C | -25°C to +105°C | -25°C to +105°C |
| Supply Voltage Range | +4 V to +30 V | +4 V to +30 V | +4 V to +30 V |
| Output Current | 1 µA/K | 1 µA/K | 1 µA/K |
| Package | 3-Lead TO-92 | 3-Lead TO-92 | 3-Lead TO-92 |
Key Features
- Precision IC Temperature Transducer: Provides an output current proportional to absolute temperature with high accuracy and linearity.
- Wide Operating Temperature Range: Operates between -25°C and +105°C, making it suitable for various applications.
- Single Supply Operation: Functions with a supply voltage range of +4 V to +30 V.
- High Impedance Current Output: Immune to voltage drops and noise over long lines, ideal for remote sensing applications.
- Minimal Self-Heating Errors: Designed to minimize self-heating errors, ensuring accurate temperature measurements.
- Electrical Ruggedness: Can withstand supply irregularities and reverse voltages up to 20 V without damage.
- Easy Multiplexing: Signal current can be switched by a CMOS multiplexer or the supply voltage can be enabled with a tri-state logic gate.
Applications
- Appliance Temperature Sensing: Used in household appliances for temperature monitoring and control.
- Automotive Temperature Measurement and Control: Employed in automotive systems for temperature sensing 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 and monitoring.
- Thermocouple Cold Junction Compensation: Can be used to compensate for cold junction errors in thermocouple applications.
- Board-Level Electronics Temperature Diagnostics: Used for temperature diagnostics in electronic boards and systems.
- Temperature Readout Options in Instrumentation: Employed in various instrumentation for accurate temperature readouts.
- Temperature Correction Circuitry for Precision Electronics: Used to correct temperature-related errors in precision electronic circuits.
Q & A
- What is the AD592CNZ and what does it do?
The AD592CNZ is a two-terminal monolithic integrated circuit temperature transducer that provides an output current proportional to absolute temperature. - What is the operating temperature range of the AD592CNZ?
The AD592CNZ operates between -25°C and +105°C. - What is the supply voltage range for the AD592CNZ?
The AD592CNZ can operate with a supply voltage range of +4 V to +30 V. - How accurate is the AD592CNZ?
The AD592CNZ has an accuracy of up to 0.5°C at +25°C and maintains high accuracy over its operating temperature range. - What makes the AD592CNZ suitable for remote sensing applications?
The AD592CNZ is immune to voltage drops and noise over long lines due to its high impedance current output, making it ideal for remote sensing applications. - Can the AD592CNZ be multiplexed?
Yes, the AD592CNZ can be easily multiplexed using a CMOS multiplexer or by enabling the supply voltage with a tri-state logic gate. - What are the common applications of the AD592CNZ?
The AD592CNZ is used in appliance temperature sensing, automotive temperature measurement, HVAC system monitoring, industrial temperature control, and more. - How is the AD592CNZ packaged?
The AD592CNZ is packaged in a 3-Lead TO-92 case rated from -45°C to +125°C. - Is the AD592CNZ electrically rugged?
Yes, the AD592CNZ can withstand supply irregularities and reverse voltages up to 20 V without damage. - What are the performance grades available for the AD592?
The AD592 is available in three performance grades: AD592AN, AD592BN, and AD592CN.
