Analog Devices Inc. AD22103KRZ-R7

The AD22103KRZ-R7, produced by Analog Devices Inc., is a monolithic temperature sensor with integrated signal conditioning. This device operates over a temperature range of 0°C to +100°C, making it suitable for various applications requiring precise temperature measurement. It is powered by a single +3.3 V supply and features a voltage output that is proportional to the temperature times the supply voltage, thus offering a ratiometric output. This characteristic simplifies system design by eliminating the need for additional active components, such as precision voltage references or trimming circuits.

The AD22103KRZ-R7 boasts several key features that make it an attractive choice for temperature sensing applications:

• Ratiometric Output: The output voltage is proportional to the temperature times the supply voltage, allowing the use of the same power supply as the ADC reference, which simplifies system design and reduces costs.
• Integrated Signal Conditioning: This feature eliminates the need for external trimming, buffering, or linearization circuitry, thus simplifying the overall system design and reducing system cost.
• High Accuracy: The device offers high accuracy with minimal offset and span errors, ensuring reliable temperature measurements.
• Low Power Consumption: With a quiescent current ranging from 350 µA to 600 µA, it is suitable for low-power applications.
• Robust Output Stage: The output stage is capable of withstanding short circuits to either ground or the power supply, enhancing reliability.

The AD22103KRZ-R7 is versatile and can be used in a variety of applications, including:

• Industrial Automation: For temperature monitoring in industrial control systems and automation equipment.
• Medical Devices: In medical equipment where precise temperature measurement is critical.
• Consumer Electronics: In devices such as smart home appliances, HVAC systems, and other consumer electronics requiring temperature sensing.
• Aerospace and Defense: For temperature monitoring in aerospace and defense applications where reliability and accuracy are paramount.

1. What is the operating temperature range of the AD22103KRZ-R7?

   The operating temperature range is from 0°C to +100°C.

2. What is the supply voltage range for the AD22103KRZ-R7?

   The supply voltage range is from +2.7 V to +3.6 V.

3. What is the quiescent current of the AD22103KRZ-R7?

   The quiescent current ranges from 350 µA to 600 µA, depending on the supply voltage.

4. How does the output voltage of the AD22103KRZ-R7 change with temperature?

   The output voltage is proportional to the temperature times the supply voltage, with a temperature coefficient of 28 mV/°C.

5. What type of package does the AD22103KRZ-R7 come in?

   The AD22103KRZ-R7 comes in an 8-Lead SOIC package.

6. Does the AD22103KRZ-R7 require external signal conditioning?

   No, the AD22103KRZ-R7 has integrated signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry.

7. How accurate is the AD22103KRZ-R7?

   The device offers high accuracy with minimal offset and span errors, ensuring reliable temperature measurements.

8. Can the AD22103KRZ-R7 withstand short circuits?

   Yes, the output stage of the AD22103KRZ-R7 is capable of withstanding short circuits to either ground or the power supply.

9. What are some common applications of the AD22103KRZ-R7?

   Common applications include industrial automation, medical devices, consumer electronics, and aerospace and defense.

10. How does the ratiometric output of the AD22103KRZ-R7 benefit system design?

    The ratiometric output allows the use of the same power supply as the ADC reference, simplifying system design and reducing costs.