Overview
The AD7417BR-REEL7 is a 10-bit, 4-channel analog-to-digital converter (ADC) with an integrated temperature sensor, manufactured by Analog Devices Inc. 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 temperature sensor, a clock oscillator, a track-and-hold circuit, and a reference voltage source. It is particularly useful for data acquisition and ambient temperature monitoring.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 10 | Bits | |
| Number of Channels | 4 | ||
| Power Supply Range | 2.7 V to 5.5 V | V | |
| Temperature Sensor Range | −40°C to +125°C | °C | |
| Conversion Time | 15 μs | μs | Typical for channels 1 to 4 |
| Conversion Time (Temperature Sensor) | 30 μs | μs | |
| Track-and-Hold Acquisition Time | 400 ns | ns | |
| Input Voltage Range | 0 V to VREF | V | |
| Input Leakage Current | ±1 μA | μA | Max |
| Input Capacitance | 10 pF | pF | Max |
| Differential Nonlinearity | ±1 LSB | LSB | Max |
| Gain Error | ±3 LSB | LSB | Max |
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.
- On-chip temperature sensor for accurate ambient temperature measurement.
- Internal or external reference voltage source (2.5 V).
- Wide operating supply range: 2.7 V to 5.5 V.
- Low power consumption with full power-down mode.
Applications
- Data acquisition with ambient temperature monitoring.
- Industrial process control.
- Automotive applications.
- Battery-charging systems.
- Personal computers and other consumer electronics.
Q & A
- What is the resolution of the AD7417 ADC?
The AD7417 has a resolution of 10 bits. - What is the operating voltage range of the AD7417?
The AD7417 operates from a single power supply ranging from 2.7 V to 5.5 V. - How many channels does the AD7417 have?
The AD7417 has 4 analog input channels and an additional channel for the temperature sensor. - What is the conversion time for the AD7417?
The conversion time for the AD7417 is typically 15 μs for channels 1 to 4 and 30 μs for the temperature sensor. - Does the AD7417 have an on-chip temperature sensor?
Yes, the AD7417 includes an on-chip temperature sensor. - What is the input voltage range for the analog channels?
The input voltage range for the analog channels is from 0 V to VREF. - How does the AD7417 conserve power?
The AD7417 features automatic power-down at the end of a conversion and a full power-down mode to conserve power. - What type of serial interface does the AD7417 use?
The AD7417 uses an I2C-compatible serial interface. - Can multiple AD7417 devices be connected to a single bus?
Yes, up to 8 AD7417 devices can be connected to a single bus due to the selectable serial bus address. - What are some common applications of the AD7417?
The AD7417 is commonly used in data acquisition, industrial process control, automotive applications, battery-charging systems, and personal computers.
