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AD7689 16-bit analog-to-digital converter

Creation date: Oct 22, 2023 11:31pm     Last modified date: Oct 22, 2023 11:31pm   Last visit date: Jul 11, 2024 12:29pm
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Oct 22, 2023  ( 1 post )  
Janey Tang (semic)

The AD7689 is a high-performance, 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices, a leading semiconductor company known for its high-quality precision analog and digital integrated circuits. The AD7689 is designed to convert analog signals into digital data with high accuracy and reliability. Here are some key features and details about the AD7689 ADC:

Key Features:

Resolution: The AD7689 is a 16-bit ADC, which means it can represent analog signals with a high level of precision, offering 65,536 possible output values.

Sampling Rate: It supports a fast sampling rate, allowing for rapid data conversion.

Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications.

Analog Input Channels: It has multiple analog input channels, which enables the conversion of multiple signals simultaneously or sequentially.

Serial Interface: The AD7689 typically communicates with microcontrollers and other digital systems through a serial interface, often using SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit) protocols.

Voltage Reference: It includes an internal voltage reference or can be configured to use an external voltage reference source.

Operating Range: The device operates across a wide supply voltage range, allowing flexibility in different applications.

Data Output Format: The ADC can provide data output in various formats, such as straight binary or two's complement.


The AD7689 is used in various applications that require high-precision analog-to-digital conversion, including:

Industrial Automation: Used for measurement and control systems, such as process control and monitoring.

Medical Equipment: Provides high-resolution data conversion for medical instruments like patient monitors and diagnostic devices.

Instrumentation: Used in scientific instruments, oscilloscopes, and data acquisition systems.

Automotive: Found in automotive applications like sensor interfaces, battery management, and control systems.

Communications: Utilized in high-performance communication equipment and base stations.

Test and Measurement: Used for high-precision measurements in laboratories and testing environments.

Aerospace and Defense: Applied in avionics, radar systems, and other mission-critical applications.

The AD7689 is just one example of the high-quality ADCs produced by Analog Devices, and it is sought after for its performance, reliability, and versatility in a wide range of applications where precise analog-to-digital conversion is essential.