Overview
The AD7416AR, manufactured by Analog Devices Inc., is a digital temperature sensor designed for precise ambient temperature measurement. This device is part of the AD7416 series and is specifically tailored for temperature monitoring only. It features an on-chip temperature sensor, an I2C-compatible serial interface, and a wide operating supply range of 2.7 V to 5.5 V. The AD7416AR is housed in an 8-lead SOIC package, making it suitable for various applications requiring compact and accurate temperature sensing.
Key Specifications
| Parameter | Min | Max | Unit | Test Conditions/Comments | |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 5.5 | V | For specified performance | |
| Temperature Range | -55 | 125 | °C | Operating temperature range | |
| Temperature Accuracy | ±2 | ±3 | °C | At 25°C and over -25°C to 100°C range, respectively | |
| Resolution | 10 | Bits | |||
| Conversion Time | 40 | μs | |||
| Update Rate | 400 | μs | |||
| Supply Current (I2C Active) | 1.0 | mA | |||
| Supply Current (I2C Inactive) | 0.2 | 1.5 | μA | ||
| Supply Current (Shutdown Mode) | 0.2 | 1.5 | μA | ||
| Output Low Voltage (VOL) | 0.4 | V | IOL = 3 mA | ||
| Output High Current (VOH) | 1 | mA | VOH = 5 V |
Key Features
- On-Chip Temperature Sensor: Measures ambient temperature with an accuracy of ±2°C over the range of -25°C to 100°C and ±3°C over the range of -40°C to 125°C.
- I2C-Compatible Serial Interface: Allows for easy communication and integration into various systems.
- Wide Operating Supply Range: Operates from 2.7 V to 5.5 V, making it versatile for different power supply conditions.
- Automatic Power-Down: Features a low power shutdown mode to reduce power consumption during inactive periods.
- Overtemperature Indicator (OTI): Provides a logic output signal when the temperature exceeds a setpoint value.
- Compact Package: Housed in an 8-lead SOIC package, suitable for space-constrained applications.
Applications
- Data Acquisition: Ideal for ambient temperature monitoring in data acquisition systems.
- Industrial Process Control: Used in industrial environments for temperature monitoring and control.
- Automotive Systems: Suitable for temperature sensing in automotive applications.
- Battery-Charging Applications: Monitors temperature during battery charging to ensure safe and efficient operation.
- Personal Computers: Can be used in personal computers for temperature monitoring of critical components).
Q & A
- What is the operating temperature range of the AD7416AR?
The AD7416AR operates over a temperature range of -55°C to 125°C.
- What is the accuracy of the temperature sensor in the AD7416AR?
The temperature accuracy is ±2°C over the range of -25°C to 100°C and ±3°C over the range of -40°C to 125°C).
- What is the resolution of the AD7416AR temperature sensor?
The resolution of the temperature sensor is 10 bits).
- What is the conversion time for the AD7416AR?
The conversion time is 40 μs).
- Does the AD7416AR support I2C communication?
Yes, the AD7416AR has an I2C-compatible serial interface).
- What is the supply voltage range for the AD7416AR?
The supply voltage range is from 2.7 V to 5.5 V).
- Does the AD7416AR have an overtemperature indicator?
Yes, the AD7416AR features an overtemperature indicator (OTI) that signals when the temperature exceeds a setpoint value).
- What is the package type of the AD7416AR?
The AD7416AR is housed in an 8-lead SOIC package).
- Does the AD7416AR support automatic power-down?
Yes, it features an automatic power-down mode to reduce power consumption during inactive periods).
- What are some typical applications of the AD7416AR?
Typical applications include data acquisition, industrial process control, automotive systems, battery-charging applications, and personal computers).
