Overview
The AD22100ARZ-RL, produced by Analog Devices Inc., is a monolithic temperature sensor with integrated signal conditioning. This device is designed to operate over a wide temperature range of -50°C to +150°C, making it highly suitable for various applications in HVAC, instrumentation, and automotive sectors. The AD22100 eliminates the need for external trimming, buffering, or linearization circuitry, thereby simplifying system design and reducing overall system costs. Its ratiometric output voltage is proportional to the temperature times the supply voltage, which facilitates cost-effective interfacing with analog-to-digital converters (ADCs) by using the ADC's power supply as a reference.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage | 4.0 | 5.0 | 6.5 | V |
| Quiescent Current | 500 | 650 | µA | |
| Guaranteed Temperature Range | -50 | +150 | °C | |
| Temperature Coefficient | (V+/5 V) × 22.5 mV/°C | |||
| Output Voltage at -50°C | 0.25 | V | ||
| Output Voltage at +150°C | 4.75 | V | ||
| Error at 25°C | ±0.5 | ±2.0 | °C |
Key Features
- Ratiometric Output: The output voltage is proportional to the temperature times the supply voltage, making it ideal for interfacing with ADCs without the need for a precision reference.
- Wide Temperature Range: Operates from -50°C to +150°C, suitable for various industrial and automotive applications.
- Integrated Signal Conditioning: Eliminates the need for external trimming, buffering, or linearization circuitry, simplifying system design and reducing costs.
- High Accuracy: Linearity better than ±1% of full scale and a temperature coefficient of 22.5 mV/°C.
- Reverse Voltage Protection and Minimal Self-Heating: Ensures robust operation and accuracy in various environments.
- High-Level, Low Impedance Output: Capable of withstanding an indefinite short circuit to either ground or the power supply.
Applications
- HVAC Systems: Ideal for temperature sensing and control in heating, ventilation, and air conditioning systems.
- System Temperature Compensation: Used for compensating temperature variations in electronic systems.
- Board Level Temperature Sensing: Suitable for monitoring temperatures on circuit boards.
- Electronic Thermostats: Used in thermostatic control systems.
- Industrial Process Control and Instrumentation: Applied in various industrial processes and instrumentation for accurate temperature measurement.
- Automotive Applications: Used in automotive systems for temperature monitoring and control.
Q & A
- What is the operating temperature range of the AD22100ARZ-RL?
The AD22100ARZ-RL operates over a temperature range of -50°C to +150°C.
- What is the output voltage range of the AD22100ARZ-RL?
The output voltage swings from 0.25 V at -50°C to 4.75 V at +150°C using a single +5.0 V supply.
- What is the significance of the ratiometric output of the AD22100ARZ-RL?
The ratiometric output allows for cost-effective interfacing with ADCs by using the ADC's power supply as a reference, eliminating the need for a precision reference.
- Does the AD22100ARZ-RL require external signal conditioning?
No, the AD22100ARZ-RL has integrated signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry.
- What are some common applications of the AD22100ARZ-RL?
Common applications include HVAC systems, system temperature compensation, board level temperature sensing, electronic thermostats, industrial process control, and automotive applications.
- What is the typical quiescent current of the AD22100ARZ-RL?
The typical quiescent current is 650 µA.
- Is the AD22100ARZ-RL protected against reverse voltage?
- How accurate is the AD22100ARZ-RL in terms of temperature measurement?
The AD22100ARZ-RL has a linearity better than ±1% of full scale and an error of ±0.5°C to ±2.0°C at 25°C.
- What is the package type of the AD22100ARZ-RL?
The AD22100ARZ-RL is available in an 8-Lead SOIC package.
- Is the AD22100ARZ-RL suitable for high-temperature environments?
