EVAL-AD7294-2SDZ

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Evaluation and Demonstration boards and kits are designed for use in the development, evaluation, and demonstration of embedded systems and digital signal processing (DSP) and analog solutions in order to quickly evaluate the performance of products. The EVAL-AD7294-2SDZ evaluation and demonstration board is a versatile tool for demonstrating the functionality and capabilities of the Analog Devices AD7294 family of complete analog subsystems, and other related family devices.

Application field of EVAL-AD7294-2SDZ

EVAL-AD7294-2SDZ is suitable for applications such as industrial instrumentation, medical, automotive, data acquisition, telecommunications, networking, energy management, military, and space exploration. It is also used for application development in the fields of factory automation, hearing aids, patient monitoring, robotics, and mobile device integration.

The EVAL-AD7294-2SDZ board operates with Analog Devices\' 16-bit Delta-Sigma ADCs, voltage reference, op-amp, reference voltage buffers, resistors, capacitors, and other related on-board components. It offers resources such as a variety of reference signals, direct connection to SPI or SQI interfaces, and additional buffers and resistors for user-defined configurations.

Working Principle of EVAL-AD7294-2SDZ

The EVAL-AD7294-2SDZ board has a variable gain system which is implemented by a combination of adjustable resistors and external reference voltage buffers. A resistor ladder network is used to combine the buffered reference voltage with the low voltage analog ground, thereby providing a wide range of input ranges and gains. The resistor ladder network is also used to provide the necessary buffering to a higher level. When the input of the EVAL-AD7294-2SDZ board is steady state, the ADC will measure the input signals and the reference voltage and the gain. The gain value is then stored in an EEPROM, which will be read when the board is powered up.

The EVAL-AD7294-2SDZ board also provides a variety of external reference signals, allowing for a wide range of sampling rates and resolutions. These include a 10-bit SIN reference signal, an 8-bit DC reference signal, and a 16-bit DC reference signal. By changing the input voltage range and gain, the evaluation and demonstration board can be used in a variety of scenarios, ranging from single-ended to differential inputs, AC differential measurements, dynamic range and noise measurements, or any other application requiring precision and accuracy.

The evaluation and demonstration board has wide range of connections for interfacing with other devices, including connectors for SPI, I2C, SQI, and UART. These connectors are used for transferring data to and from the device to the host PC, allowing for further analysis, validation, and control of the system. Once connected, the EVAL-AD7294-2SDZ board can be monitored and configured directly from the PC.

In conclusion, the EVAL-AD7294-2SDZ evaluation and demonstration board is a versatile tool for demonstrating the functionality and capabilities of the Analog Devices AD7294 family of complete analog subsystems. This board is suitable for a wide range of applications and is capable of interfacing with a wide range of external devices. It also offers a wide range of reference signals and a variety of flexible connectors for easy interfacing. With its adjustable resistors and reference voltage buffers, the EVAL-AD7294-2SDZ board can provide the necessary accuracy and precision required for applications such as factory automation, medical, telecommunications and data acquisition, among others.

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