AD2S82AHP

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The AD2S82AHP is a high-performance, absolute angle-to-digital converter designed for use in high accuracy industrial motor control applications. It provides an accurate, high-resolution conversion of a sine or cosine input into a proportional digital output. The AD2S82AHP is used in feedback control systems for brushless DC, stepper, induction and synchronous motors. These feedback systems typically involve angle sensing and regenerate angle measurement, which are essential to maintain the proper speed and position of the motor over its operating range.

The AD2S82AHP circuits integrate the necessary functional elements of sin/cos acquisition, reconstructor and AC/DC conversion into a single device, which eliminates the need for adding external components. It offers a unique combination of low noise, outstanding temperature stability and very fast settling time, making it particularly suitable for applications in hostile environments and in applications requiring very high performance.

The AD2S82AHP is a mixed-signal device that consists of an 8-bit A/D converter and an on-board real-time tracking digital filter. The A/D converter utilizes successive approximation register architecture, which enables fast settling time and low distortion output. The digital filter is a sin x/x type, operated in real time while externally tracking the input signal, in order to accurately reconstruct the input signal\'s sinusoidal shape.

The AD2S82AHP can be used in high accuracy industrial motor control applications, including: brushless DC motor control, stepper motor control, induction motors, synchronous motors, and angle sensing and regenerative angle measurement. It is ideally suited for these applications due to its low noise, temperature stability and fast settling time. It offers an accurate, high-resolution conversion of a sine or cosine input into a proportional digital output, eliminating the need for adding external components.

The AD2S82AHP has two dedicated parallel digital outputs: an 8-bit absolute encoder position and a 6-bit sine/cosine ratio. These dedicated outputs allow for independent conversion of the sine and cosine inputs, allowing the system to optimize resolution and accuracy. The device also includes a Programmable Track Enable register that enables the tracked digital filter to be placed in a low-power mode, reducing power consumption when not operating in extreme environmental conditions.

The AD2S82AHP is configured through a three-wire serial interface and operates on a single 5 V supply. This allows the system to be optimized for low power as well as high-performance applications, while also providing maximum flexibility to adjust the device\'s settings. When configured correctly, the device delivers precision signal conversion suitable for a wide range of applications.

In summary, the AD2S82AHP is a high-performance, absolute angle-to-digital converter suitable for a wide range of industrial motor control applications. It features low noise, temperature stability, and fast settling time, making it ideal for applications in hostile environments and for applications requiring high performance. The device features dedicated parallel digital outputs and is configured via a three-wire serial interface.

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