AD8402ARZ100-REEL

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The AD8402ARZ100-REEL belongs to the family of Digital Potentiometers within the Data Acquisition category. Digital potentiometers are integrated circuits (ICs) having a single slider control that acts as a voltage divider. The AD8402ARZ100-REEL has dual independent digital potentiometers which are used to adjust a given input. This data acquisition component has a wide range of applications involving electric current adjustment, voltage regulation, LED brightness control and audio control.

The AD8402ARZ100-REEL has a 2-wire communication interface that allows the parameters to be adjusted on demand. The component comes with a power rating of 0.8 V to 3.6 V and a working temperature range of -40șC to +85șC. Its power supply pin configuration has a single pin power supply. Its external resistors are required for the component to set up the output resistance and the current for the wiper pin.

The component works on the principle of controlling resistance between two terminals with a wiper entity. The resistance between the two terminals varies depending on the command issued to the component, either manually or digitally. The component has a built-in programmable EEPROM which stores a single channel of data. The EEPROM is used to store the wiper setting, it can be programmed and accessed using the I2C serial bus.

The component consists of two independently controlled digital potentiometers: the first one is used to adjust the current, while the second one is used to adjust the voltage. The current is adjusted by adjusting the resistance between the virtual ground and the wiper pin, and the voltage is adjusted by adjusting the resistance between the power supply and the wiper pin. The component has auto-calibration functionality built in, which allows for convenient current or voltage selection.

The component has two control input pins – A0 and A1 which are used to determine the wiper setting for each of the potentiometers. The A0 pin can be used to select the current or voltage, while the A1 pin can be used to select the range of the potentiometer. The component also has a push button that can be used to reset the component to its default state.

The AD8402ARZ100REEL is widely used in applications like LED dimming systems, audio control systems, voltage regulation, current adjustment and in a variety of other applications that require voltage and current adjustment. This digital potentiometer is a reliable and cost-effective solution for data acquisition in industrial and consumer applications.

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