Overview
The AD7816AR-REEL7, produced by Analog Devices Inc., is a specialized temperature measurement device that is part of the AD7816/AD7817/AD7818 family of analog-to-digital converters (ADCs). This particular model is designed specifically for temperature monitoring and does not include the multi-channel ADC functionality found in the AD7817 and AD7818. The AD7816AR-REEL7 operates from a single 2.7 V to 5.5 V power supply and features an on-chip temperature sensor with high accuracy and resolution.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10-bit |
| Temperature Sensor Accuracy | ±2°C (max) |
| Operating Temperature Range | -55°C to +125°C |
| Supply Voltage | 2.7 V to 5.5 V |
| Conversion Time | 9 μs (for ADC), 27 μs (for temperature sensor) |
| Package Type | 8-Lead Small Outline IC (SOIC), 8-Lead Micro Small Outline IC (MSOP) |
| Interface Compatibility | Intel 8051, Motorola SPI, QSPI, National Semiconductors MICROWIRE |
Key Features
- High-accuracy on-chip temperature sensor with ±2°C accuracy and 0.25°C resolution
- Low power consumption, making it suitable for energy-efficient designs
- Flexible serial interface compatible with multiple microcontroller protocols
- Inherent track-and-hold functionality and on-chip clock oscillator
- On-chip reference (2.5 V) with the option to use an external reference
Applications
- Industrial and commercial equipment
- HVAC systems
- Automotive applications
- Consumer electronics
- Medical devices
Q & A
- What is the resolution of the AD7816AR-REEL7's temperature sensor?
The AD7816AR-REEL7 has a 10-bit resolution for its temperature sensor, providing a resolution of 0.25°C.
- What is the operating temperature range of the AD7816AR-REEL7?
The device operates over a temperature range of -55°C to +125°C.
- What is the supply voltage range for the AD7816AR-REEL7?
The supply voltage range is from 2.7 V to 5.5 V.
- How long does a temperature conversion take on the AD7816AR-REEL7?
A temperature conversion takes approximately 27 μs.
- What types of packages are available for the AD7816AR-REEL7?
The device is available in 8-Lead Small Outline IC (SOIC) and 8-Lead Micro Small Outline IC (MSOP) packages.
- Is the AD7816AR-REEL7 compatible with various microcontroller protocols?
Yes, it is compatible with Intel 8051, Motorola SPI, QSPI, and National Semiconductors MICROWIRE protocols.
- Can the AD7816AR-REEL7 use an external reference voltage?
Yes, the device allows the use of an external 2.5 V reference voltage, with the internal reference shutting down if an external reference is connected.
- What are some common applications for the AD7816AR-REEL7?
Common applications include industrial and commercial equipment, HVAC systems, automotive applications, consumer electronics, and medical devices.
- Is the AD7816AR-REEL7 a low power device?
Yes, the AD7816AR-REEL7 is designed for low power consumption, making it suitable for energy-efficient designs.
- What is the accuracy of the temperature sensor in the AD7816AR-REEL7?
The temperature sensor has an accuracy of ±2°C.
