Overview
The AD7417BR-REEL, produced by Analog Devices Inc., is a 10-bit, 4-channel analog-to-digital converter (ADC) with an integrated on-chip temperature sensor. This device operates from a single power supply ranging from 2.7 V to 5.5 V, making it versatile for various applications. The AD7417 features a successive approximation converter, a 5-channel multiplexer, a clock oscillator, a track-and-hold circuit, and a reference voltage source. It is particularly useful in environments where both analog signal conversion and ambient temperature monitoring are required.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 10-bit | ||
| Number of Channels | 4 | ||
| Supply Voltage (VDD) | 2.7 V to 5.5 V | V | |
| Operating Temperature | -40°C to 85°C | °C | |
| Temperature Sensor Accuracy | ±1°C at 25°C, ±2°C over -40°C to 85°C | °C | |
| Conversion Time | 15 μs (typical 10 μs) | μs | For channels 1 to 4 |
| Conversion Time (Temperature Sensor) | 30 μs (typical 27 μs) | μs | |
| Input Voltage Range | 0 V to VREF | V | |
| Reference Voltage | 2.5 V ± 5% | V | |
| Interface | I2C-compatible serial interface | ||
| Package | 16-SOIC (0.154", 3.90mm Width) |
Key Features
- Integrated Temperature Sensor: Allows for ambient temperature monitoring with an accuracy of ±1°C at 25°C and ±2°C over the operating temperature range.
- Wide Operating Supply Range: Operates from a single 2.7 V to 5.5 V power supply.
- I2C-Compatible Serial Interface: Enables easy communication and allows up to 8 devices to be connected to a single bus.
- Automatic Power-Down: Reduces power consumption by automatically powering down at the end of a conversion.
- Programmable Serial Bus Address: Allows for multiple devices to be connected to the same bus.
- Low Power Consumption: Suitable for battery-powered and power-sensitive applications.
Applications
- Data Acquisition with Ambient Temperature Monitoring: Ideal for systems that require simultaneous analog signal conversion and temperature monitoring.
- Industrial Process Control: Used in industrial environments where precise temperature and analog signal measurements are crucial.
- Automotive Systems: Suitable for automotive applications due to its wide operating temperature range and robust design.
- Battery-Charging Applications: Helps in monitoring battery health and ambient temperature during charging cycles.
- Personal Computers and Embedded Systems: Can be integrated into various computing systems for temperature and analog signal monitoring.
Q & A
- What is the resolution of the AD7417 ADC?
The AD7417 has a 10-bit resolution.
- What is the operating supply voltage range of the AD7417?
The AD7417 operates from a single 2.7 V to 5.5 V power supply.
- What type of interface does the AD7417 use?
The AD7417 uses an I2C-compatible serial interface.
- How accurate is the temperature sensor in the AD7417?
The temperature sensor has an accuracy of ±1°C at 25°C and ±2°C over the operating temperature range.
- What is the conversion time for the AD7417?
The conversion time is typically 10 μs for channels 1 to 4 and 27 μs for the temperature sensor.
- Can multiple AD7417 devices be connected to the same bus?
Yes, up to 8 AD7417 devices can be connected to a single bus due to programmable serial bus addresses.
- What is the package type of the AD7417BR-REEL?
The AD7417BR-REEL comes in a 16-SOIC package.
- What is the operating temperature range of the AD7417?
The operating temperature range is -40°C to 85°C.
- Does the AD7417 have automatic power-down capability?
Yes, the AD7417 automatically powers down at the end of a conversion to reduce power consumption.
- What are some common applications of the AD7417?
Common applications include data acquisition, industrial process control, automotive systems, battery-charging applications, and personal computers.
