DS1867E-010/T&R

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Digital potentiometers are variable resistors that are electronically operated using a digital signal to control the amount of resistance. The DS1867E-010/T&R application field and working principle governs the digital potentiometer industry. Digital potentiometers are used in a wide range of industries to adjust analog signals, from the absolute basics of its use in supplying adjustable references for digital-to-analog converters to sophisticated precision applications within the professional audio industry. Employing digital potentiometers enables engineers to precisely set and read the amount of resistance as it is being used.From a design perspective, the DS1867E-010/T&R is a highly reliable, low power consuming linear component that is distributed in 10K and 100K configurations, each comprised of 10 single resistor elements and an on-chip analog voltage reference. Each separate resistor element is configured to operate in a series-parallel, switching connection, which is ideal for applications such as volume control, or, more accurately, audio signal alteration and adjustment. The series-parallel connection of the 10K and 100K resistance options of the DS1867E-010/T&R provides a virtually linear response to a voltage input, meaning the user can adjust the resistance of the component in a very accurate and controlled manner. This is important for the precision engineering requirements of certain sectors and industries. But accuracy alone is not the only measure of a quality digital potentiometer. Low power consumption and minimal component size are also important considerations for design engineers, which is why the miniature size of the DS1867E-010/T&R and its Ultralow power properties are so attractive. The DS1867E-010/T&R chip features 10 channels that can be individually accessed and individually modified. The resistance of each channel can be adjusted independently, and they can be used in parallel, consecutive or wired-in series, to achieve a desired resistance as controlled by the user.The chip comes with a Serial Peripheral Interface (SPI) and a two wire serial interface (TWI) for communication, allowing for quick and simple set up and access to data. The chip also includes a unique buffer-enable (BUFFEN) feature for each of the channels, this improves the system performance of the chip by avoiding glitches in the output signal. The on-chip power-down feature enables the user to completely disable the chip, effectively cutting off power, furthering the already excellent low power consumption of the device. The working principle of the DS1867E-010/T&R is fairly simple; the small Serial Peripheral Interface (SPI) transmits data, which is then received by a 3-wire Serial Interface (TWI) receiver, which then passes the data back in the form of a flat resistance curve. When the user moves the slider, the resistance of each element changes, effectively creating a variable resistance that is controlled by the user. The combination of the low power consumption and its mini size make the DS1867E-010/T&R an ideal choice for design engineers in a variety of industries. It is ideal for audio applications, where quality sound and accuracy are necessities, such as recording and mastering, as well as more general applications, such as controlling analog signals and providing accurate voltage references for digital-to-analog converters. The DS1867E-010/T&R is a highly reliable and effective digital potentiometer product that can be utilised in many complex applications, enabling engineers to control and adjust analog signals with accuracy and ease.

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