Overview
The AD22100STZ, manufactured by Analog Devices Inc., is a monolithic temperature sensor with integrated 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 AD22100STZ simplifies system design by eliminating the need for trimming, buffering, or linearization circuitry, thereby reducing overall system cost. Its ratiometric output voltage, proportional to the temperature times the supply voltage, allows for cost-effective integration with analog-to-digital converters (ADCs) without the need for a precision voltage 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 | +100 | °C | |
| Operating Temperature Range | -50 | +150 | °C | |
| Temperature Coefficient | (V+/5 V) × 22.5 mV/°C | |||
| Output Voltage at 25°C | 1.938 V | V | ||
| Error at 25°C | ±0.5 | ±2.0 | °C |
Key Features
- Ratiometric output voltage proportional to temperature times supply voltage, allowing for cost-effective integration with ADCs without a precision voltage reference.
- Single-supply operation with minimal self-heating and high-level, low-impedance output.
- Reverse voltage protection and the ability to withstand an indefinite short circuit to either ground or the power supply.
- Linearity better than ±1% of full scale and accuracy better than ±2% of full scale.
- Integrated signal conditioning eliminates the need for trimming, buffering, or linearization circuitry, simplifying system design and reducing cost.
Applications
- HVAC systems
- System temperature compensation
- Board level temperature sensing
- Electronic thermostats
- Industrial process control
- Instrumentation
- Automotive applications.
Q & A
- What is the operating temperature range of the AD22100STZ? The AD22100STZ operates over a temperature range of -50°C to +150°C.
- What is the typical quiescent current of the AD22100STZ? The typical quiescent current is 650 µA.
- How does the AD22100STZ simplify system design? The AD22100STZ simplifies system design by eliminating the need for trimming, buffering, or linearization circuitry due to its integrated signal conditioning.
- What is the nature of the output voltage of the AD22100STZ? The output voltage is ratiometric, meaning it is proportional to the temperature times the supply voltage.
- Can the AD22100STZ be used with microprocessor-based systems? Yes, the AD22100STZ is well-suited for providing low-cost temperature measurement in microprocessor/microcontroller-based systems by using the same power supply as the ADC reference.
- What are the key applications of the AD22100STZ? Key applications include HVAC systems, system temperature compensation, board level temperature sensing, electronic thermostats, industrial process control, instrumentation, and automotive applications.
- Does the AD22100STZ have reverse voltage protection? Yes, the AD22100STZ has reverse voltage protection.
- How does the AD22100STZ handle short circuits? The AD22100STZ can withstand an indefinite short circuit to either ground or the power supply.
- What is the linearity and accuracy of the AD22100STZ? The linearity is better than ±1% of full scale, and the accuracy is better than ±2% of full scale.
- What is the typical output voltage at 25°C? The nominal output voltage at 25°C is 1.938 V.
