Overview
The AD7417BR is a 10-bit, 4-channel analog-to-digital converter (ADC) with an on-chip temperature sensor, produced 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 AD7417BR 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 voltage source. It is available in a 16-lead SOIC (Small Outline IC) package and is ROHS compliant.
Key Specifications
| Parameter | Min | Max | Unit | Test Conditions/Comments | |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | - | 5.5 | V | - |
| Resolution | 10 | - | 10 | Bits | No missing codes guaranteed |
| Relative Accuracy | - | - | ±1 | LSB | Typical for VDD of 3.6 V to 5.5 V |
| Differential Nonlinearity | - | - | ±1 | LSB | Typical for VDD of 3.6 V to 5.5 V |
| Gain Error | - | - | ±3 | LSB | - |
| Input Voltage Range | 0 | - | VREF | V | - |
| Input Leakage Current | - | - | ±1 | μA | - |
| Input Capacitance | - | - | 10 | pF | - |
| Temperature Measurement Error at 25°C | - | - | ±1 | °C | - |
| Temperature Measurement Error (TMIN to TMAX) | - | - | ±3 | °C | - |
| Temperature Resolution | - | - | 1/4 | °C/LSB | - |
| Conversion Time (Temperature Sensor) | - | - | 30 | μs | - |
| Conversion Time (Channels 1 to 4) | - | - | 15 | μs | - |
Key Features
- On-Chip Temperature Sensor: Allows accurate measurement of ambient temperature with an error of ±1°C at 25°C and ±3°C over the full temperature range.
- 4-Channel ADC: Provides four external voltage input channels for analog-to-digital conversion.
- Single Power Supply: Operates from a single power supply ranging from 2.7 V to 5.5 V.
- I2C-Compatible Serial Interface: Enables communication with up to eight devices on a single bus.
- Automatic Power-Down: Reduces power consumption by automatically powering down at the end of a conversion.
- Programmable Serial Bus Address: Allows multiple devices to be connected to a single bus.
- Internal Reference and Clock Oscillator: Includes a 2.5 V reference voltage source and an internal clock oscillator.[
Applications
- Data Acquisition with Ambient Temperature Monitoring: Suitable for applications requiring simultaneous analog data acquisition and temperature monitoring.[
- Industrial Process Control: Used in industrial settings for monitoring and controlling processes that involve temperature and analog voltage inputs.[
- Automotive Applications: Can be used in automotive systems for temperature and voltage monitoring.[
- Battery-Charging Applications: Useful in battery management systems where temperature and voltage monitoring are critical.[
- Personal Computers: Can be integrated into computer systems for temperature and voltage monitoring.[
Q & A
- What is the operating voltage range of the AD7417BR?
The AD7417BR operates from a single power supply ranging from 2.7 V to 5.5 V.
- How many analog input channels does the AD7417BR have?
The AD7417BR has four external voltage input channels.
- What is the resolution of the AD7417BR?
The AD7417BR has a 10-bit resolution.
- How accurate is the temperature measurement of the AD7417BR?
The temperature measurement error is ±1°C at 25°C and ±3°C over the full temperature range.
- What is the conversion time for the temperature sensor and analog channels?
The conversion time for the temperature sensor is 30 μs, and for the analog channels, it is 15 μs.[
- Does the AD7417BR support I2C communication?
Yes, the AD7417BR has an I2C-compatible serial interface.[
- Can multiple AD7417BR devices be connected to a single bus?
Yes, up to eight devices can be connected to a single bus due to the programmable serial bus address.[
- What is the package type of the AD7417BR?
The AD7417BR is available in a 16-lead SOIC package.[
- Is the AD7417BR ROHS compliant?
Yes, the AD7417BR is ROHS compliant.[
- What are some typical applications of the AD7417BR?
Typical applications include data acquisition with ambient temperature monitoring, industrial process control, automotive applications, battery-charging applications, and personal computers.[
