Overview
The AD7711AR is a high-precision, 24-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is part of the company's extensive range of data acquisition products and is designed to provide accurate and reliable conversion of analog signals to digital data. The AD7711AR features a sigma-delta architecture, which ensures high resolution and low noise performance. It is particularly suited for applications requiring precise measurement and signal conditioning, such as in industrial control systems, medical devices, and test and measurement equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Category | Integrated Circuits (ICs) - Data Acquisition - Analog to Digital Converters (ADC) |
| Package | 24-SOIC (0.295", 7.50mm Width) |
| Number of Bits | 24 |
| Sampling Rate (Per Second) | 1 kSPS |
| Number of Inputs | 2 |
| Input Type | Differential |
| Data Interface | SPI |
| Configuration | MUX-PGA-ADC |
| Architecture | Sigma-Delta |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 5 V ~ 10 V |
| Voltage - Supply, Digital | 5 V |
Key Features
- High Resolution: 24-bit sigma-delta ADC providing high accuracy and precision.
- Signal Conditioning: Includes a programmable gain amplifier (PGA) and a multiplexer (MUX) for flexible signal conditioning.
- Low Noise Performance: The sigma-delta architecture ensures low noise and high signal-to-noise ratio (SNR).
- Flexible Power Supply: Operates with an analog supply voltage range of 5 V to 10 V and a digital supply voltage of 5 V.
- Serial Interface: SPI interface for easy communication with microcontrollers or other digital systems.
- RTD Excitation Currents: Provides built-in RTD excitation currents, making it suitable for temperature measurement applications.
Applications
- Industrial Control Systems: For precise measurement and control in industrial automation.
- Medical Devices: In medical equipment requiring high accuracy and reliability, such as patient monitoring systems.
- Test and Measurement Equipment: For accurate data acquisition in various test and measurement applications.
- Temperature Measurement: Suitable for temperature measurement using RTDs due to its built-in excitation currents.
Q & A
- What is the resolution of the AD7711AR ADC?
The AD7711AR has a resolution of 24 bits.
- What type of architecture does the AD7711AR use?
The AD7711AR uses a sigma-delta architecture.
- How many input channels does the AD7711AR have?
The AD7711AR has 2 differential input channels.
- What is the sampling rate of the AD7711AR?
The sampling rate of the AD7711AR is 1 kSPS.
- What type of data interface does the AD7711AR use?
The AD7711AR uses an SPI (Serial Peripheral Interface) for data communication.
- What is the power supply range for the analog and digital sections of the AD7711AR?
The analog supply voltage range is 5 V to 10 V, and the digital supply voltage is 5 V.
- Does the AD7711AR include built-in RTD excitation currents?
Yes, the AD7711AR includes built-in RTD excitation currents.
- What package type is the AD7711AR available in?
The AD7711AR is available in a 24-SOIC package.
- Is the AD7711AR RoHS compliant?
Some versions of the AD7711AR are RoHS compliant, while others are not. It depends on the specific part number and version.
- What are some common applications of the AD7711AR?
The AD7711AR is commonly used in industrial control systems, medical devices, test and measurement equipment, and temperature measurement applications.
