Overview
The AD7418ARM-REEL7, produced by Analog Devices Inc., is a 10-bit, single-channel Analog-to-Digital Converter (ADC) with an integrated 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 AD7418 features a successive approximation converter, a 5-channel multiplexer, a temperature sensor, a clock oscillator, a track-and-hold circuit, and a 2.5 V reference. It is particularly useful for applications requiring both analog input conversion and ambient temperature monitoring.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10-bit |
| Number of Channels | Single-channel |
| Power Supply Range | 2.7 V to 5.5 V |
| Conversion Time (Analog Input) | 15 μs |
| Conversion Time (Temperature Sensor) | 30 μs |
| Track-and-Hold Acquisition Time | 400 ns |
| Input Voltage Range | 0 V to +VREF |
| Temperature Measurement Range | –40°C to +125°C |
| Temperature Measurement Accuracy | ±1°C at 25°C (typical) |
| Interface | I2C-compatible serial interface |
| Serial Bus Address | Selectable, allowing up to 8 devices on a single bus |
Key Features
- Integrated Temperature Sensor: Allows for accurate measurement of ambient temperature.
- Wide Operating Supply Range: Operates from 2.7 V to 5.5 V, making it suitable for a variety of applications.
- I2C-Compatible Serial Interface: Enables easy communication and allows multiple devices to be connected to a single bus.
- Automatic Power-Down: Reduces power consumption by automatically powering down at the end of a conversion.
- High Accuracy: Offers high accuracy in both analog input conversion and temperature measurement.
- Low Power Consumption: Designed for minimal power usage, especially when unused analog inputs are properly managed.
Applications
- Data Acquisition with Ambient Temperature Monitoring: Ideal for systems that require simultaneous data acquisition and temperature monitoring.
- Industrial Process Control: Suitable for monitoring and controlling industrial processes where temperature and analog inputs are critical.
- Automotive Applications: Used in automotive systems for temperature and analog signal monitoring.
- Battery-Charging Applications: Helps in monitoring battery health and charging conditions.
- Personal Computers: Can be used in various computer peripherals and systems requiring temperature and analog input monitoring.
Q & A
- What is the resolution of the AD7418ARM-REEL7?
The AD7418ARM-REEL7 has a 10-bit resolution.
- What is the operating voltage range of the AD7418ARM-REEL7?
The device operates from a single power supply ranging from 2.7 V to 5.5 V.
- How long does it take to convert an analog input signal?
The conversion time for an analog input signal is 15 μs.
- How accurate is the temperature measurement of the AD7418ARM-REEL7?
The temperature measurement accuracy is ±1°C at 25°C (typical).
- What type of interface does the AD7418ARM-REEL7 use?
The device uses an I2C-compatible serial interface.
- Can multiple AD7418ARM-REEL7 devices be connected to a single bus?
- What is the track-and-hold acquisition time of the AD7418ARM-REEL7?
The track-and-hold acquisition time is 400 ns.
- What is the input voltage range for the analog inputs of the AD7418ARM-REEL7?
The input voltage range is from 0 V to +VREF.
- How does the AD7418ARM-REEL7 manage power consumption?
The device automatically powers down at the end of a conversion to reduce power consumption.
- What are some common applications of the AD7418ARM-REEL7?
Common applications include data acquisition with ambient temperature monitoring, industrial process control, automotive applications, battery-charging applications, and personal computers.
