EVAL-AD7291SDZ

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Evaluation boards are dedicated hardware development tools that provide engineers with the production-intent designs that include the correct peripherals and I/O connections for immediate application testing. These boards are designed to speed up the development process and assist engineers by providing ready-made environments that reduce the risk and learning curve associated with the development of a proof-of-concept prototype. 

In the category of Evaluation Boards - Analog to Digital Converters (ADCs), the EVAL-AD7291SDZ is a 16-bit high speed/low power ADC evaluation board. It comes equipped with an AD7291 monolithic 16-bit ADC and is capable of performing sample rates up to 800 kSPS. The board has a miniature form factor (2.75 inches × 2.50 inches) and supports single ended and differential input ranges. With its on-board precision reference and versatile I/O connections, the EVAL-AD7291SDZ provides engineers with an optimal design platform for evaluating the overall performance of the AD7291. 

The EVAL-AD7291SDZ requires an operating voltage between 2.7 V and 5.4 V with temperature range of -40°C to +105°C. The board utilizes a 4-KHz 16-bit pipeline architecture that can achieve sample rates faster than 800 kSPS at lower power. The on-board reference voltage sources are coordinated with an externally triggered interrupt and the onboard DAC supports up to 96 levels of resolution. The GPIO pins can also be used to set other communication protocols such as I2C, SPI, and serial. 

The operational principle of the EVAL-AD7291SDZ board is based on a differential input voltage of 1 V from the ADC core. In order to acquire a sample, the AD7291 sends a 3-phase clocking signal followed by the analog-to-digital conversion. Then, the core produces a digital value which is passed to the input register. After the conversion, the 16-bit result is available at the output register and the ADC initiates another conversion cycle implicitly. 

The EVAL-AD7291SDZ board is designed to simplify and quicken the development process. Its compact form factor and low power usage makes it ideal for portable and mobile applications. Moreover, its onboard precision reference and high data throughput make it an attractive option for ADC evaluation and communication protocols such as I2C and SPI. With its extensive features and capabilities, the EVAL-AD7291SDZ is an optimal choice for applications that require fast and efficient measurement of inputs in cost-sensitive and power-constraint environments. 

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