EVAL-AD7949EDZ

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Evaluation boards are designed to offer users a platform to investigate the capabilities of the Analog to Digital Converters (ADCs) devices. The EVAL-AD7949EDZ Evaluation Board is one such product that is intended to demonstrate the performance and features of the AD7949, a low-power, dual-channel, precision successive approximation register (SAR) analog-to-digital converter (ADC). Specifically, this evaluation board is an ideal choice for designers seeking a low cost solution for applications in medical equipment, industrial, and automotive systems.

Since accuracy, low power, and wide dynamic range are essential in many of today’s applications, it is important to take into account some of the features contained in this evaluation board. It has a very wide voltage range, with a supply voltage range of 2.7V to 5.5V and an input voltage range of ±10V. A built-in low dropout, low power, high performance voltage regulator allows the user to operate the EVAL-AD7949EDZ from a single supply as low as 2.7V. Additionally, an adjustable gain and a reference output pin is incorporated to drive the ADC’s reference source.

This evaluation board also has an innovative low-power switching architecture. It uses a differential input stage with charge redistribution switches and a switched-capacitor architecture that helps minimize power consumption. The user can operate the board from 3.3V, 5V, or 15V supplies. The maximum sample frequency is 26 million samples per second (MSPS), and it consumes a maximum of 1W of power at 15V. Furthermore, it achieves the accuracy of 1 LSB error with a ±10V input range.

The EVAL-AD7949EDZ has a working principle based on the basic principle of the analog-to-digital converter, with the ADC\'s input stage controlling the level of an analog output, dependent upon the digital commands. The analog output signal is then connected to a comparator, whose output is fed to a successive-approximation register to form a logic level digital output voltage. The digital output is then used to control various switches and transistors in the successive approximation register, thus providing the analog-to-digital conversion. Additionally, the analog and/or digital outputs can be utilized to monitor and/or control any appropriate transducer or actuator.

The EVAL-AD7949EDZ evaluation board is designed to provide users with an easy-to-use platform to investigate the performance of the precision SAR ADC. It is capable of processing multiple analog inputs with a wide dynamic range and a low power solution. It is also an accurate, low-cost solution for applications in medical equipment, industrial, and automotive systems. With its wide voltage range, integrated voltage regulator, and adjustable gain and reference pins, the board is well equipped to handle any type of conversion. Furthermore, its high accuracy and sample frequency make it an ideal choice for engineers and designers who need a quick, reliable, and cost-effective solution for their projects.

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