DS1267-050

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DS1267-050 is a digital potentiometer which is widely used in applications related to data acquisition. It is a two-channel, rheostat-like device that uses data to control the resistance of its two terminals. Its two channels each have eight resistance taps, allowing them to provide variable resistances of up to 256 distinct resistances. It also incorporates non-volatile memory, allowing it to store its settings after power-cycling.The DS1267-050 device is designed to be used in high-precision data acquisition and measurement applications. Its applications include, but are not limited to, adjusting the gain of amplifiers, allowing software controlled adjustments to the resistance of a circuit, and creating adjustable analog dividers. It has a wide range of uses from audio routing, to thermocouple measurements, to telecommunication to automotive testing.The working principle of the DS1267-050 device is fairly straightforward. Each channel has eight digitally-controlled analog taps, and the device features a high-precision 24-bit R/W DAC. A Micro-Wire or SPI (Serial Peripheral Interface) bus is used to control the taps of each channel.When a DS1267-050 device is connected to a system, the angle corresponding to the resistance of each of its channels is initially set by software. A 16-bit digital command is provided to the device through the I2C or SPI bus. Once the resistance values are set they are stored in the non-volatile memory. Resistance adjustment is then accomplished by varying the voltage on the two external terminals of the device. The higher the voltage applied to the device, the more resistance there is between its two terminals. The device also features a Power-On-Reset (POR) circuit which ensures that the device is always in a known state when power is first applied. This is useful for monitoring devices and circuits which may fluctuate unpredictably; the POR ensures that the device will remain stable and ready to use.The DS1267-050 is an extremely versatile device and can be used in a variety of data acquisition applications. Its precision, high accuracy, and wide settings range make it an invaluable tool for measuring and controlling precise levels of electrical resistance. It has a wide range of applications and is especially useful in situations where making rapid, precise, and repeatable adjustments to a circuit\'s resistance is necessary.

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