ADS5481EVM

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Analog to Digital Converters (ADCs) are a type of electrical circuit designed to convert an analog signal—variable electrical currents or voltages—into a digital signal. The ADS5481EVM evaluation board is specially designed to evaluate the performance of TI’s industry-leading, 29-bit, ADC, the ADS5481. This high-performance board can be used in several different applications, and illustrates the product’s broad range of capabilities.

Applications

The ADS5481EVM is well suited for a variety of applications, including solutions for scientific instrumentation, medical systems, and industrial instrumentation. These applications require either low-frequency or wide-band, high-resolution data conversion. In addition, this evaluation board can be used in imaging, defense, and aerospace applications that involve radar, advanced inertial guidance systems, and communications systems.

More specifically, the ADS5481EVM can be used to develop medical imaging systems, as the board includes power supply and clock synchronization capabilities that enables the ADC to meet medical imaging requirements. Additionally, the board is suitable for use in industrial control and signal acquisition systems, as its high signal-to-noise ratio allows it to accurately capture large signals. The board can also be used to capture wideband signals, as it has an input sampling rate of up to 2 MHz.

Working Principle

Analog to digital converters (ADCs) use sample and hold circuits to capture a signal and pass it to an appropriate analog signal conditioning board. The ADC board consists of an analog signal conditioning board, ADC driver, reference board, and the main ADC board. The reference board provides an accurate reference voltage to the ADC board, which it can use to measure the input signal. Once the signal is measured, it is passed to an internal digital-to-analog converter in the ADC board, which converts the analog signal into a stream of digital information. This stream of information is then passed to a digital output controller, which formats the data and sends it out in the form of a voltage signal.

The ADS5481EVM board is specific in that it utilizes the ADS5481 ADC, which has an output resolution of 16 or 29 bits. This high resolution output makes it well suited for applications involving highly precise measurements, such as medical imaging and industrial control. In addition to providing the ADC with a highly accurate reference voltage, the board also has integrated power supply and clock synchronization capabilities that make it suitable for high-speed sampling of wideband signals.

Conclusion

With its high signal to noise ratio and wide sampling rate, the ADS5481EVM evaluation board is ideal for a variety of applications, including medical imaging, industrial control, and signal acquisition systems. This board also provides a reference voltage and integrated power supply and clock synchronization capabilities that make it well suited for use in high-speed, wideband signal acquisition. With its array of features and high resolution output, the ADS5481EVM is an ideal tool for testing and evaluating the performance of TI’s industry-leading, 29-bit ADC, the ADS5481.

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