EVAL-AD7276CBZ

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Introduction

Evaluation boards are a set of components which are used to evaluate the performance of a particular device. For the evaluation of Analog-to-Digital Converters (ADCs), Analog Devices provides the EVAL-AD7276CBZ evaluation board. It helps the user to better understand the performance and features of the AD7276 12-Bit, Quad Channel, Successive Approximation Register (SAR) ADC. This board includes all of the necessary components and subsystems required to evaluate the AD7276.

EVAL-AD7276CBZ Application Field

The EVAL-AD7276CBZ evaluation board is suitable for any type of application that requires the conversion of analog input signals into digital information. Some of the more common applications include medical imaging, test and measurement, industrial process control, robotics and automation, IoT, and consumer electronics. The board supports two integrated voltage reference ICs (ADR4540 and REF196), so that users can accurately convert input signals that have varying input voltage ranges.

EVAL-AD7276CBZ Power Supply Requirements

The EVAL-AD7276CBZ requires a 5V supply voltage for operation. The integrated ADR4540 Voltage Reference IC provides an accurately regulated voltage to the AD7276 ADC. For a single analog input channel, 207mW is required for full-scale operation. For all four channels, 830mW is required for full-scale operation.

EVAL-AD7276CBZ Working Principle

The EVAL-AD7276CBZ works on a successive approximation register (SAR) architecture. This technique provides fast throughput and flexibility by using a shift register, digital comparator, and an analog-to-digital (A/D) converter. The user can input the desired digital output to the shift register and the digital comparator will compare the output of the shift register with the analog to digital (A/D) converter. This is done until the predetermined digital output is achieved. The result is an analog-to-digital conversion with adjustable sensitivity and resolution. With the EVAL-AD7276CBZ board, users can experiment with the maximum potentials of the AD7276 ADC for their application.

Evaluation Board Features

The EVAL-AD7276CBZ evaluation board has several features designed to give users the most flexibility and accuracy. It provides isolation between the ADC and the PCB, enabling users to configure the board for a single-ended or differential input. The integrated ADR4540 Voltage Reference IC eliminates the need for an external reference, and provides users with an accurate regulated voltage that can be adjusted from 1.235V to 5.502V. The board also supports four analog input channels, so users can collect simultaneous data from multiple analog sensors. Additionally, the EVAL-AD7276CBZ features multiple output formats, including 2\'s complement, straight binary, or offset binary.

Conclusion

The Analog Devices EVAL-AD7276CBZ evaluation board is an ideal solution for users who are looking to evaluate the performance and features of the AD7276 12-Bit, Quad Channel, Successive Approximation Register (SAR) ADC. It can be used in a variety of applications that require the conversion of analog input signals into digital information. The board supports two integrated voltage reference ICs (ADR4540 and REF196), which provide users with an accurately regulated voltage for their applications. Additionally, it supports four analog input channels and has several features designed to give users the most flexibility and accuracy. Overall, the EVAL-AD7276CBZ is an excellent solution for users who need to accurately convert analog inputs to digital information.

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