Overview
The AD22100KRZ-REEL7 is a monolithic temperature sensor integrated circuit (IC) produced by Analog Devices Inc. This device is designed to provide a cost-effective and highly accurate temperature sensing solution. It features on-chip signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry. The AD22100 operates over a wide temperature range of -50°C to +150°C, making it suitable for various applications in HVAC, instrumentation, and automotive sectors.
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 Characteristics - Error at TA = 25°C | ±0.5 | ±2.0 | °C | |
| Output Voltage at TA = 25°C | 1.938 | V | ||
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- Ratiometric Output: The output voltage is proportional to the supply voltage, making it ideal for interfacing with analog-to-digital converters without the need for a precision reference voltage.
- High Accuracy: The sensor has a temperature coefficient of 22.5 mV/°C and an error of ±2.0°C at 25°C, ensuring high accuracy over the operating temperature range.
- Minimal Self-Heating: The device is designed to minimize self-heating, ensuring accurate temperature readings.
- Reverse Voltage Protection: The AD22100 includes reverse voltage protection, enhancing its reliability in various applications.
- Low Impedance Output: The high-level, low impedance output simplifies the connection to other circuit components).
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 and electronic assemblies).
- Electronic Thermostats: Employed in electronic thermostats for precise temperature control).
- Industrial Process Control and Instrumentation: Used in industrial processes and instrumentation for accurate temperature measurement).
- Automotive: Applied in automotive systems for temperature monitoring and control).
Q & A
- What is the operating temperature range of the AD22100KRZ-REEL7?
The AD22100KRZ-REEL7 operates over a temperature range of -50°C to +150°C.
- What is the temperature coefficient of the AD22100KRZ-REEL7?
The temperature coefficient is (V+/5 V) × 22.5 mV/°C).
- What is the typical output voltage at 25°C for the AD22100KRZ-REEL7?
The nominal output voltage at 25°C is 1.938 V).
- Does the AD22100KRZ-REEL7 require external signal conditioning?
No, the AD22100KRZ-REEL7 includes on-chip signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry).
- What is the package type of the AD22100KRZ-REEL7?
The package type is 8-SOIC (0.154", 3.90mm Width)).
- Is the AD22100KRZ-REEL7 RoHS compliant?
- What are the typical applications of the AD22100KRZ-REEL7?
The AD22100KRZ-REEL7 is used in HVAC systems, system temperature compensation, board level temperature sensing, electronic thermostats, industrial process control, instrumentation, and automotive applications).
- Does the AD22100KRZ-REEL7 have reverse voltage protection?
- How does the ratiometric nature of the AD22100KRZ-REEL7 benefit its use with analog-to-digital converters?
The ratiometric output allows the use of the ADC’s power supply as a reference, eliminating the need for a precision reference voltage).
- What is the quiescent current of the AD22100KRZ-REEL7?
The quiescent current is typically 650 µA).
