ADS1251EVM

The ADS1251EVM is an Evaluation Module designed to evaluate the performance of the ADS1251 low power, high resolution sigma-delta analog-to-digital converter (ADC). It offers Active Level Detection and Serial Peripheral Interface (SPI) communication. The ADS1251EVM supports a wide range of analog i/ps that can be used in sample, synthesis, and pulse oximetry applications. Its features make it suitable for use in a variety of dedicated applications.

Evaluation Boards - Analog to Digital Converters (ADCs)

The ADS1251EVM is an analog to digital converter (ADC) evaluation board based on the sigma-delta architecture. A sigma-delta architecture is a type of analog-to-digital conversion (ADC) that uses a higher fidelity signal and isolation to provide better resolution and noise reduction performance. It can be used in applications such as medical monitoring or environmental sensing. In addition to the on-board ADC, the board also features a sample-and-hold circuit, active level detection circuits, and a serial peripheral interface (SPI) for communication.

ADS1251EVM - Application Field and Working Principle

The ADS1251EVM evaluation board is designed to use the ADS1251 low power, high resolution, sigma-delta ADC. It can be used for a variety of dedicated applications, such as medical monitoring and environmental sensing. The board is suitable for single to multi-channel applications with minimal power demands. The evaluation board is shipped ready-to-use and includes features such as active level detection, automatic gain compensation and a serial peripheral interface (SPI) for communication. It enables quick and easy testing with results accessible via an external LCD display.

The working principle of the ADS1251EVM is simple. The sigma-delta conversion process is based on the delta-sigma modulation technique. The analog input signal is first integrated and then sampled. The sample is compared with the reference level and then converted to a binary form. This process continues so that successive samples can be compared and converted. The result is a high resolution output from the ADC and digital representation of the analog input.

The evaluation module offers Active Level Detection and Serial Peripheral Interface (SPI) communication for easy connection to a host device. It offers a wide range of analog inputs and outputs to meet specific application requirements. The board also features a sample and hold circuit, automatic gain compensation and dynamic update rate control. The board supports an on-board temperature sensor and a reset input for resetting the board.

Conclusion

The ADS1251EVM is a versatile evaluation board designed to evaluate the performance of an sigma-delta analog-to-digital converter (ADC). It offers a wide range of analog inputs for a variety of applications, active level detection, automatic gain compensation, and external communication. It is well-suited for medical applications such as monitoring and environment sensing. As a complete precision single channel ADC environment, the ADS1251EVM is a great choice for evaluation and testing.