CDB5381

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The CDB5381 from Analog Devices Inc is a complete analog-to-digital converter (ADC) evaluation board designed to assess the performance of 16-bit, low-power \'sigma-delta\' ADCs. The evaluation board comes with a variety of features optimized to make it an ideal solution for use in a wide range of applications, from consumer medical and industrial systems to automotive and communications networks. With its built-in power-on reset circuitry, the CDB5381 can be powered by a USB connection, and its design allows for easy customization for various applications.

The CDB5381 evaluation board implements a variety of features designed to make it optimal for applications ranging from evaluation of silicon performance of ADCs to actual product testing and development for the consumer and industrial markets. It comes with a variety of peripherals, making it an ideal solution for use in 16-bit ADC applications. This includes an analog input conditioning circuitry, analog MUX, a 2.5V to 3.3V LDO, and on-board temperature sensor. The board also comes with a 10 MHz crystal oscillator for use in calibration and signal monitoring applications, a fast 8kHz to 20kHz analog power supply, and two USB connectors for data interface.

At the heart of the CDB5381 is an Analog-to-Digital converter (ADC) IC responsible for dynamic range, linearity and power efficiency. It offers 8N differential dynamic range with over 86dB SNR, making it ideal for Low Power Sigmadelta applications. It also offers a programmable gain from 1V to 2.1V, making it easy to adjust gain as needed for various applications. The ADC IC also features a flexible power management, with low power management as well as power-down modes. It also features high speed communications such as two-wire communication and SPI.

The CDB5381 is primarily intended for evaluation of the ADC ICs as part of a complete system. It includes a variety of I/O pins for direct connection with the target system as well as testing and verification of ADC performance. An on-board signal analyzer with timing analysis allows for complete system-level testing and characterization. The CDB5381 also features complete JTAG boundary scan capability for system-level testing and board diagnostics.

In addition, the CDB5381 is able to measure and calibrate ADC parameters such as gain, linearity, offset, settling, and step response. It also supports data logging and data analysis over long periods. It can be easily upgraded through firmware revisions and feature set updates, allowing for design flexibility as well as support for new features. All these features make the Analog Devices’ CDB5381 evaluation board an ideal solution for applications that require an analog-to-digital converter with reliable and precise performance.

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