Overview
The AD7814ARM-REEL7, produced by Analog Devices Inc., is a 10-bit digital temperature sensor packaged in a 6-lead SOT-23 or 8-lead MSOP package. This component integrates a band gap temperature sensor and a 10-bit analog-to-digital converter (ADC) to provide accurate temperature readings with a resolution of 0.25°C. The device is designed for a wide range of applications due to its flexible serial interface, low power consumption, and broad operating temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Temperature Range | –55°C to +125°C |
| Accuracy | ±2°C |
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current | Low power consumption |
| Interface | SPI-, QSPI-, and MICROWIRE-compatible |
| Package | 6-lead SOT-23 or 8-lead MSOP |
| Conversion Time | Approximately 25 µs |
| Shutdown Mode | Controlled via serial interface |
Key Features
- High accuracy temperature measurement with ±2°C accuracy.
- Flexible serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Low power consumption with a standby mode controlled via the serial interface.
- Wide operating temperature range of –55°C to +125°C.
- Compact packaging in 6-lead SOT-23 or 8-lead MSOP.
- Internal clock oscillator for automatic conversion sequence, eliminating the need for an external clock.
Applications
- Personal computers and office equipment.
- Electronic test equipment.
- Domestic appliances.
- Process control systems.
- Hard disk drives.
Q & A
- What is the resolution of the AD7814 temperature sensor?
The AD7814 has a resolution of 10 bits, providing temperature readings with a resolution of 0.25°C. - What is the operating temperature range of the AD7814?
The operating temperature range is –55°C to +125°C. - What types of interfaces does the AD7814 support?
The AD7814 supports SPI, QSPI, and MICROWIRE protocols. - How is the shutdown mode controlled on the AD7814?
The shutdown mode is controlled via the serial interface. - What is the typical conversion time for the AD7814?
The typical conversion time is approximately 25 µs. - What is the supply voltage range for the AD7814?
The supply voltage range is 2.7 V to 5.5 V. - Does the AD7814 require an external clock for operation?
No, the AD7814 has an internal clock oscillator for the automatic conversion sequence. - In what packages is the AD7814 available?
The AD7814 is available in 6-lead SOT-23 and 8-lead MSOP packages. - What are some common applications of the AD7814?
Common applications include personal computers, office equipment, electronic test equipment, domestic appliances, and process control systems. - How accurate is the temperature measurement of the AD7814?
The temperature measurement accuracy is ±2°C.
