Overview
The AD7418ARZ-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. It features an I2C-compatible serial interface, allowing for easy communication with microprocessors or other digital systems. The AD7418 is designed to provide accurate measurements of both analog signals and ambient temperature, making it suitable for a wide range of industrial, automotive, and consumer electronics applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10-bit | |
| Number of Channels | Single-channel | |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Interface | I2C-compatible serial interface | |
| Conversion Time | 15 μs (typical) | μs |
| Temperature Sensor Range | −40°C to +125°C | °C |
| Temperature Resolution | 1/4 °C/LSB | °C/LSB |
| Input Voltage Range | 0 V to VREF | V |
| Input Leakage Current | ±1 μA (max) | μA |
| Input Capacitance | 10 pF (max) | pF |
| Differential Nonlinearity | ±1 LSB (max) | LSB |
| Gain Error | ±3 LSB (max) | LSB |
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 various power supply conditions.
- I2C-Compatible Serial Interface: Enables easy communication with microprocessors or other digital systems.
- Automatic Power-Down: Reduces power consumption by automatically powering down at the end of a conversion.
- Selectable Serial Bus Address: Allows connection of up to 8 devices to a single bus.
- Fast Conversion Time: 15 μs typical conversion time for analog channels and 30 μs for the temperature sensor.
- Internal or External Reference: Can use either the internal 2.5 V reference or an external reference source.
Applications
- Data Acquisition with Ambient Temperature Monitoring: Ideal for systems that require simultaneous measurement of analog signals and temperature.
- Industrial Process Control: Suitable for monitoring and controlling industrial processes where temperature and analog signal measurement 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 signal monitoring.
Q & A
- What is the resolution of the AD7418ARZ-REEL7 ADC?
The AD7418ARZ-REEL7 has a 10-bit resolution.
- What is the operating voltage range of the AD7418ARZ-REEL7?
The device operates from a single power supply ranging from 2.7 V to 5.5 V.
- What type of interface does the AD7418ARZ-REEL7 use?
The device uses an I2C-compatible serial interface.
- How long does a conversion take on the AD7418ARZ-REEL7?
The typical conversion time is 15 μs for analog channels and 30 μs for the temperature sensor.
- What is the temperature range of the integrated temperature sensor?
The temperature sensor can measure temperatures from −40°C to +125°C.
- Can the AD7418ARZ-REEL7 use an external reference voltage?
Yes, the device can use either the internal 2.5 V reference or an external reference source.
- What is the input voltage range for the analog channels?
The input voltage range for the analog channels is 0 V to VREF.
- What is the differential nonlinearity of the AD7418ARZ-REEL7?
The differential nonlinearity is ±1 LSB (max).
- What are some common applications of the AD7418ARZ-REEL7?
Common applications include data acquisition, industrial process control, automotive systems, battery-charging applications, and personal computers.
- How does the automatic power-down feature work?
The device automatically powers down at the end of a conversion to reduce power consumption.
