AD7714ARS-3REEL

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Data Acquisition - Analog to Digital Converters (ADC) are essential components in many industrial, consumer and medical systems. The AD7714 August family of high accuracy, low-power simultaneous sampling data acquisition systems provide 12- or 16-bit resolution converters, with 16-bit digital filters, to an array of applications. Among this family, the AD7714ARS-3REEL is designed to provide a cost effective and easy-to-use solution for data acquisition.

The AD7714ARS-3REEL is a three-channel simultaneous sampling data acquisition system with 12- or 16-bit resolution, with selectable sampling rates up to 250 Hz. It consumes only 450 μA at a supply voltage of + 5 V, which makes it suitable for a wide range of applications from portable instruments to benchtop systems.

The AD7714ARS-3REEL is suitable for application in load cells, weighing instruments, strain gauges, thermocouples and strain gages. It provides an ideal solution for integrating multiple sensors and converting analog data to digital. The unique convert-digital-pin process eliminates the need for an external sample and hold amplifier. The differential inputs are self-calibrating, requiring only a 3-volt or 5-volt excitation voltage to eliminate any offset voltage errors.

In terms of working principle, the AD7714ARS-3REEL is an integrating 18-bit sigma-delta ADC with three differential inputs capable of simultaneous sampling. Its core uses successive-approximation to convert analog data to digital. The sigma-delta approach utilizes oversampling and noise shaping which allows the ADC to run at relatively low clock rates while delivering good noise immunity and high accuracy.

The AD7714ARS-3REEL allows for programmable gain and user-selectable resolution. It offers a wide input range from 5.75 mV to 8.5 V. Moreover, its integrated EBG (External Buffer) helps to decrease the output noise, providing excellent linearity and an extremely low power consumption.

In summary, the AD7714ARS-3REEL is a low-power, low-cost solution for a wide range of analog data acquisition applications, including the integration of multiple sensor inputs. Its successive-approximation technology, convert-digital-pin design and integrated external buffer make it an ideal solution for a variety of applications.

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