Analog Devices Inc. AD22100KTZ

The AD22100KTZ, produced by Analog Devices Inc., is a monolithic temperature sensor with on-chip 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 AD22100KTZ features a ratiometric output, where the output voltage is proportional to the temperature times the supply voltage, simplifying system design and reducing overall system cost by eliminating the need for trimming, buffering, or linearization circuitry.

• Ratiometric Output: The output voltage is proportional to the temperature times the supply voltage, making it cost-effective for interfacing with analog-to-digital converters.
• On-Chip Signal Conditioning: Eliminates the need for trimming, buffering, or linearization circuitry, simplifying system design and reducing overall system cost.
• Wide Temperature Range: Operates from -50°C to +150°C, suitable for various industrial and automotive applications.
• 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.

• 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 and other electronic assemblies.
• Electronic Thermostats: Used in thermostatic control systems for precise temperature regulation.
• Industrial Process Control and Instrumentation: Applied in various industrial processes and instrumentation for accurate temperature measurement.
• Automotive: Used in automotive systems for temperature monitoring and control.

1. What is the operating temperature range of the AD22100KTZ?
   The AD22100KTZ operates over a temperature range of -50°C to +150°C.
2. What is the typical output voltage range of the AD22100KTZ?
   The output voltage ranges from 0.25 V at -50°C to 4.75 V at +150°C using a single +5.0 V supply.
3. What is the significance of the ratiometric output of the AD22100KTZ?
   The ratiometric output allows the device to interface cost-effectively with analog-to-digital converters by using the ADC’s +5 V power supply as a reference, eliminating the need for a precision reference.
4. Does the AD22100KTZ require any external signal conditioning?
   No, the AD22100KTZ has on-chip signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry.
5. What are the typical applications of the AD22100KTZ?
   The AD22100KTZ is used in HVAC systems, system temperature compensation, board level temperature sensing, electronic thermostats, industrial process control, instrumentation, and automotive applications.
6. What is the quiescent current of the AD22100KTZ?
   The quiescent current is typically 650 µA, with a minimum of 500 µA.
7. Is the AD22100KTZ protected against reverse voltage?
   Yes, the AD22100KTZ has reverse voltage protection.
8. How accurate is the AD22100KTZ in terms of temperature measurement?
   The AD22100KTZ has a linearity better than ±1% of full scale and an error of ±0.5 °C at 25°C.
9. What is the moisture sensitivity level (MSL) of the AD22100KTZ?
   The moisture sensitivity level (MSL) of the AD22100KTZ is 1.
10. What are the package options available for the AD22100KTZ?
    The AD22100KTZ is available in a 3-lead TO-92 package.