AD7862ARSZ-2REEL

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Data acquisition is the process of collecting data gathered from specialized hardware sensors, such as those used in temperature, pressure, acceleration, flow, and vibration sensing, as well as converting that data into a form accessible to further analysis. As part of this process, analog signals must be converted into digital signals, which can then be further analyzed and manipulated with the help of computers. Converting analog signals into digital signals is known as analog to digital conversion and the most commonly used component for this process is an analog to digital converter (ADC). The AD7862ARSZ-2REEL is a high resolution, low power Sigma-Delta analog to digital converter (ADC) from Analog Devices.

The AD7862ARSZ-2REEL Application Field

The AD7862ARSZ-2REEL is designed for applications such as medical, industrial and consumer electronics, with its low power consumption, fast conversion and high resolution making it an ideal choice. Its small size and low power consumption mean it can be incorporated into devices with limited space, such as handheld units, while its low EMI/RFI (electromagnetic interference/radio frequency interference) and high resolution make it suitable for mission critical operations. Furthermore, the AD7862ARSZ-2REEL has a wide power supply span (1.8V to 5.25V), making it suitable for both battery powered and mains powered applications.

AD7862ARSZ-2REEL Working Principle

The AD7862ARSZ-2REEL uses a Sigma-Delta AD conversion architecture that is effective in reducing the overall noise and providing higher resolution than traditional ADCs. Sigma-Delta converters use a combination of oversampling and noise shaping to reduce noise and arrive at higher resolution. The oversampling process takes the analog signal, samples it many times, and adds the samples together to reconstruct the signal. The noise shaping process reduces the noise associated with the signal by taking the digital stream and running it though a low pass filter. The advantage of using Sigma-Delta converters is that it increases the resolution of the AD conversion without requiring a high speed sampling frequency.

AD7862ARSZ-2REEL Features

The AD7862ARSZ-2REEL supports a number of features that make it useful for many applications including:

• SAR (Successive Approximation Register) architecture that provides 12-bit resolution with up to 15dB SNR improvement
• Up to 8 analog inputs
• Low power consumption, typically 0.18mW/channel
• Fast conversion time of 2.2 milliseconds
• Low EMI/RFI noise
• Autozero at the beginning of each conversion

Conclusion

The AD7862ARSZ-2REEL is an ideal ADC for precision data acquisition and analysis in a variety of applications such as medical, industrial and consumer electronics. Its wide power supply range, low power consumption, fast conversion time, high resolution and low noise make it well-suited for a variety of tasks. Furthermore, its small size, excellent performance, and wide range of features allow it to be used in the most demanding of situations. The AD7862ARSZ-2REEL is an excellent choice for converting analog signals into digital signals.

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