Overview
The AD7417ARUZ, manufactured by Analog Devices Inc., is a 10-bit, 4-channel analog-to-digital converter (ADC) with an integrated on-chip temperature sensor. This device is designed to operate from a single power supply ranging from 2.7 V to 5.5 V, making it versatile for various applications. It features a 15 μs successive approximation converter, a 5-channel multiplexer, a temperature sensor, a clock oscillator, a track-and-hold circuit, and a 2.5 V reference. The AD7417ARUZ is well-suited for applications requiring precise temperature monitoring and control, and it supports I2C-compatible serial communication.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10-bit |
| Number of Channels | 4 (plus 1 temperature sensor channel) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Conversion Time | 15 μs (analog channels), 30 μs (temperature sensor) |
| Temperature Measurement Error | ±2°C at 25°C, ±3°C over full range |
| Temperature Resolution | 1/4 °C/LSB |
| Input Voltage Range | 0 V to VREF |
| Input Leakage Current | ±1 μA max |
| Input Capacitance | 10 pF max |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 16-TSSOP (0.173, 4.40mm Width) |
Key Features
- I2C-compatible serial interface with selectable serial bus address, allowing up to 8 devices on a single bus.
- Automatic power-down at the end of a conversion to conserve power.
- A programmable fault queue counter to prevent spurious triggering of the overtemperature indicator (OTI) in noisy environments.
- A configuration register for programming the sense and OTI output (active high or active low) and its operating mode (comparator or interrupt).
- An on-chip 2.5 V reference, with the option to use an external reference.
- Overtemperature indicator (OTI) output for temperature monitoring.
Applications
- Data acquisition with ambient temperature monitoring.
- Industrial process control.
- Automotive applications.
- Battery-charging applications.
- Personal computers and other consumer electronics.
Q & A
- What is the resolution of the AD7417ARUZ ADC?
The AD7417ARUZ has a 10-bit resolution.
- What is the operating supply voltage range of the AD7417ARUZ?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- How many channels does the AD7417ARUZ have?
The AD7417ARUZ has 4 analog input channels plus one channel for the temperature sensor.
- What is the conversion time for the analog channels and the temperature sensor?
The conversion time is 15 μs for the analog channels and 30 μs for the temperature sensor.
- What is the temperature measurement accuracy of the AD7417ARUZ?
The temperature measurement error is ±2°C at 25°C and ±3°C over the full operating range.
- What communication interface does the AD7417ARUZ use?
The device uses an I2C-compatible serial interface.
- Can multiple AD7417ARUZ devices be connected to a single bus?
Yes, up to 8 devices can be connected to a single bus due to the selectable serial bus address feature.
- What is the purpose of the overtemperature indicator (OTI) output?
The OTI output is set if the result of a conversion on the temperature sensor channel exceeds a setpoint, indicating an overtemperature condition.
- How does the AD7417ARUZ conserve power?
The device features automatic power-down at the end of a conversion to conserve power.
- What package type is the AD7417ARUZ available in?
The device is available in a 16-TSSOP package.
