X9317WM8I

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The X9317WM8I is a type of data acquisition device, more specifically, it is a digital potentiometer. Digital potentiometers are data conversion components that use a firmware-programmable resistance to adjust their output voltage. Their main purpose is to provide a variable output voltage with digital control. Digital potentiometers are usually stand-alone components, although sometimes they are incorporated in more complex devices. Digital potentiometers are versatile and have been used in many different fields, including automotive, aerospace, industrial, medical, communications and consumer electronics.

The X9317WM8I is a single-channel, bit-accessible, 8-bit resolution digital potentiometer designed specifically for use in power applications. It features a low-power, low-endurance wiper system and is constructed in an 8-bit CMOS process for exceptional low power consumption and low electromagnetic interference (EMI). It has an operating temperature range from -40°C to +125°C, and a typical supply current of 500μA.

The X9317WM8I is built with a memory array consisting of two bytes. The %WR pin is used to write data into the memory array. All 8 bits of the memory array (the A side) share a common connection with each other and to a wipeless, programmable resistor and amplifier. The other end of the resistor, the B side, is connected to the VCC bus. As the bits are written into the memory array, the wiper is moved along the resistor, controlling the level of the output voltage.

The X9317WM8I has several digital outputs that control the wiper position and the read-back of the memory array. There are two separate %RD pins on the chip that allow for reading back from the A side and the B side of the memory array, enabling the user to detect a power-fail condition or monitor for other digital activity. The chip also includes a DPST switch pin that allows for the selection of either digital or analog operations, further enhancing its power management capabilities.

The X9317WM8I is an ideal choice for applications that require accurate and reliable digital potentiometer solutions. Its low-power consumption and high accuracy are perfect for automotive, medical, industrial and consumer electronics applications. Its wide operating temperature range ensures reliable operation in extreme environments. Furthermore, its bit-addressability makes it easy to program and use in any application.

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