AD5243BRM100

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The AD5243BRM100 is a digitally programmable, single-channel, high-resolution potentiometer that is optimized for digital-to-analog applications. The AD5243BRM100 is a resistor array with a programmable slider that can be set to whatever value the user needs. This makes it ideal for applications ranging from digital potentiometers and data acquisition to analog-to-digital converters and industrial automation.

The AD5243BRM100 is designed to offer affordability and high performance. It provides 8-bit resolution (256 taps) and a 40KΩ linear taper potentiometer. It has a low initial resistance tolerance of 0.5Ω, a wide temperature range of -40 to +85℃, and a low power rating of 1 mV/tap from 0.5mV to 10mA. It features a low ON resistance of 1Ω, a stand-by current of 1µA, and a low total end-to-end resistance of 39.5KΩ to 41.5KΩ. It also offers a recessed slider output, floating slider, resistance range selection pins, and an enable input.

In terms of its application fields, the AD5243BRM100 can be used in a wide range of digital-to-analog applications including volume control, programmable parameter adjustment, and touch-sensitive feedback control. It is commonly used in audio systems, audio effects devices, video systems, processors, and other digital signal processing applications. It is also used in mechanical systems, like rotary switches and sprinkler systems.

The working principle of the AD5243BRM100 is based on the linear voltage division (LVD) configuration. It converts a binary word into an analog voltage by applying an equivalent voltage with a proportional total resistance between the two ends of the potentiometer. Through this principle, the output voltage of the potentiometer is determined by the output of the control signal applied to it. The resistance value of the potentiometer is determined by the control signal. For example, if the control signal is set to a binary word, the output voltage of the potentiometer is set to a proportional resistance, resulting in an analog output.

The AD5243BRM100 uses an analog multiplexer to bridge the signal and the digital-to-analog converter (DAC). The signal generated by the multiplexer is software programmable and adjusted with digital gain and offset adjust pins. The multiplexer is composed of two resistors between which a user-programmable resistance value is implemented according to the applied signal\'s digital words. The two resistors act as voltage dividers and divide the signal into two separate parts.

In addition, the AD5243BRM100 features adjustable voltage and current limiting, enabling the device to be used in applications requiring higher current or higher voltages without compromising its performance. The adjustable current limiting allows for a very wide range of current levels to be accommodated in one device. The adjustable voltage limiting allows for up to ±6.9V for the AD5243BRM100.

The AD5243BRM100 is a versatile and reliable programmable potentiometer with superior performance, making it suitable for a variety of applications. It offers a wide range of features, including 8-bit resolution, a 40KΩ linear taper, low initial resistance tolerance, and adjustable voltage and current limiting. It also features a wide temperature range, a low power rating, a low on resistance, and a low total end-to-end resistance, making it an ideal choice for digital-to-analog applications.

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