MAX5520ETC+

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Data Acquisition technologies are often focused on analog to digital converter and microcontrollers, yet Digital to Analog Converters (DAC) play an important role in data acquisition process.

The MAX5520ETC+ is a precision, ultra-low-power, 16-bit DAC with extremely low power and ultrahigh resolution. It is a one-of-a-kind analog digital converter device and is made up of hybrid components that combine to provide the best performance for its application field and working principle.

The device’s architecture consists of a fully differential current switch and four 4-bit capacitive arrays. The particularity of the *MAX5520ETC+* is that the current-switch operation is designed to ensure a precise static accuracy. Dynamic accuracy is further enhanced with the use of two feedback nodes, which provide precise voltage regulation. This increases the level of accuracy maintained by the device in terms of temperature, power supply, and loading effects.

The current-switch/capacitive arrays architecture is used to perform the conversion. The 4-bit DAC array is operated under the control of the 4-bit digital control port. Depending on the value stored in the 4-bit DAC the digital control word (regardless of the logic voltage), the DAC generates in each of its 4-bit cells the exact amplitude current output. The precision of the output is then ensured by a feedback node, since feedback is taken between the digital control word and the DAC array.

The MAX5520ETC+ also affords low noise levels, precision reference and high output impedance, which eliminates the need for an external buffer amplifier to maintain the signal-to-noise ratio. The device is also designed for use in battery-powered applications and is compliant to various standards such as AEC-Q100. The MAX5520ETC+ also supports high accuracy and low power consumption, both of which make it the ideal solution for automatic measurement systems, data loggers and wireless telemetry.

In addition, it is available in a small 4mmx4mm QFN-16 package and is pin compatible with its predecessors, the MAX5520 and the MAX5520B. The compatibility aids the seamless integration of these products into existing designs.

The MAX5520ETC+ offers an unparalleled combination of sampling speed, resolution and low power consumption, making it a perfect complement to applications that need to process data from multiple sensors quickly and accurately. The integrated reference voltage also eliminates the need for external references and keeps power consumption to a minimum. Additionally, the integrated error correction circuitry provides an exceptionally high accuracy and noise level. Therefore, the MAX5520ETC+ is the perfect choice for low-power, high-accuracy digital-to-analog conversion in challenging applications.

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