MAX5489ETE#G16

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Digital potentiometers are an essential part of data acquisition and are widely used for applications that require precise control of electrical parameters like voltage and current. The MAX5489ETE#G16 is an advanced digital potentiometer that combines high-precision control with flexibility of use and excellent reliability.

The MAX5489ETE#G16 makes use of a wide range of characteristics and technologies to ensure smooth and accurate potentiometer performance. It is a precision resistor divider integrated circuit (IC) with a built-in 250Ω/15kΩ/500Ω resistor ladder and a 16-bit current-sensed digital potentiometer with non-volatile memory. Its 0.1% accuracy and 0.1% temperature coefficient value over a wide temperature range provide consistent performance over different environmental conditions. This potentiometer has a wide resistance range of 1Ω to 16kΩ, a maximum update rate of 500µs, and no dead band or hysteresis.

The precision resistor divider and the non-volatile memory of the MAX5489ETE#G16 serve two primary functions. First, they allow the device to accurately and consistently divide an input signal into two outputs with a given ratio, typically from 0.5 to 5.5V, but this varies depending on the application. Second, the non-volatile memory allows the potentiometer to maintain its resistance setting even when power is removed, ensuring that the system remains in its desired state when power returns.

The MAX5489ETE#G16 also features a selectable reference voltage and is fully ESD protected to 8kV HBM. With its combination of high-precision control and flexibility, the MAX5489ETE#G16 is a great choice for many data acquisition applications. Some of the most popular applications are:

• Controlling the volume and tone of audio systems
• Adjusting the output voltage and current of power supplies
• Smoothing inductor ripple on DC/DC converters
• Adjusting voltage to match preamplifier inputs on digital-to-analog converters (DACs)
• Setting the motor speed and reverse direction on motor speed control circuits
• Controlling the speed of fans

In addition to its application in data acquisition, the MAX5489ETE#G16 can also be used in other areas such as automotive and industrial applications. In each case, its flexibility and high accuracy make it a reliable and convenient choice.

The MAX5489ETE#G16 works on the principle of a resistor divider circuit. In this circuit, two resistors are connected in series with the wiper terminal in the center. By adjusting the wiper position, the series resistors form a voltage divider which produces an output voltage that is proportional to the wiper position. The output voltage can be used to control the current or voltage of an electrical system.

In digital potentiometers such as the MAX5489ETE#G16, the resistors are typically in the form of integrated circuits (ICs). This is then connected to a microcontroller that converts the input from the wiper position into digital signals. The microcontroller then sends a control signal to the digital potentiometer which adjusts the resistance to the desired setting.

The MAX5489ETE#G16 is an advanced application-specific device designed specifically for precision data acquisition and control applications. Its high accuracy and reliable performance make it a valuable addition to any system that requires accurate and precise control of electrical parameters. With its combination of features and capabilities, the MAX5489ETE#G16 is an excellent choice for many data acquisition and control applications.

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