Overview
The AD22100AR-REEL7 is a monolithic temperature sensor produced by Analog Devices Inc. It features on-chip signal conditioning, eliminating the need for trimming, buffering, or linearization circuitry. This simplifies system design and reduces overall system cost. The sensor operates over a wide temperature range of -50°C to +150°C, making it ideal for various applications including HVAC, instrumentation, and automotive systems.
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 | |
| Output Type | Analog Voltage | |||
| Temperature Coefficient | 22.5 mV/°C | |||
| Accuracy at 25°C | ±0.5 | ±2.0 | °C | |
| Output Voltage at 25°C | 1.938 V | V |
Key Features
- Ratiometric output voltage proportional to temperature times the supply voltage, allowing for cost-effective interfacing with analog-to-digital converters (ADCs).
- On-chip signal conditioning eliminates the need for external trimming, buffering, or linearization circuitry.
- High linearity with a temperature coefficient of 22.5 mV/°C.
- Single-supply operation with a supply voltage range of 4 V to 6.5 V.
- Minimal self-heating and high-level, low-impedance output.
- Reverse voltage protection for enhanced reliability.
Applications
- HVAC systems for temperature sensing and control.
- System temperature compensation in various electronic systems.
- Board-level temperature sensing in industrial and automotive applications.
- Electronic thermostats and other temperature control devices.
- Industrial process control and instrumentation.
Q & A
- What is the operating temperature range of the AD22100AR-REEL7?
The AD22100AR-REEL7 operates over a temperature range of -50°C to +150°C.
- What type of output does the AD22100AR-REEL7 provide?
The AD22100AR-REEL7 provides an analog voltage output).
- What is the temperature coefficient of the AD22100AR-REEL7?
The temperature coefficient is 22.5 mV/°C).
- What is the supply voltage range for the AD22100AR-REEL7?
The supply voltage range is from 4 V to 6.5 V).
- Does the AD22100AR-REEL7 require external signal conditioning?
No, the AD22100AR-REEL7 has on-chip signal conditioning, eliminating the need for external trimming, buffering, or linearization circuitry).
- What are some common applications of the AD22100AR-REEL7?
Common applications include HVAC systems, system temperature compensation, board-level temperature sensing, electronic thermostats, industrial process control, and instrumentation).
- How does the ratiometric nature of the AD22100AR-REEL7 benefit its use with analog-to-digital converters (ADCs)?
The ratiometric nature allows the ADC to use the same power supply as a reference, eliminating the need for a precision voltage reference and reducing system cost).
- What is the quiescent current of the AD22100AR-REEL7?
The quiescent current is typically 650 µA, with a minimum of 500 µA).
- Does the AD22100AR-REEL7 have any protection features?
- How accurate is the AD22100AR-REEL7 at room temperature?
