AD5246BKS100-R2

Data Acquisition - Digital Potentiometers

AD5246BKS100-R2 is an integrated digital potentiometer (DPOT) which consists of 256 wiper positions and works electrically like a variable resistor. This DPOT can be used for analog signal processing, high resolution variable gain and more. The applications of this improved version of AD5246 DPOT include variable tuning of a filter, autocalibration, and potentiometer emulator.

Application Fields

The AD5246BKS100-R2 is typically used in applications such as LCD contrast tuning, audio volume or gain control, and motion control. Its low operating voltage and high number of wipers make it ideal for creating a level of precision and accuracy that is difficult to achieve with a mechanical potentiometer. It is also useful in servo and motor control applications, as it provides accurate and repeatable control. It may also be used in applications where external adjustments can be made, such as voltage and current regulation, as well as feedback circuitry.

The AD5246BKS100-R2 can also be used to control temperature in domestic appliances such as room heaters, ovens and cooktops, and air conditioners. This version of the DPOT also has a built-in temperature sensor and ambient light detection, allowing further flexibility when used in these applications. Its robust design and surface mount package make it suitable for use in many highly competitive and demanding environments.

Working Principle

The working principle of the AD5246BKS100-R2 is based on resistive circuits. It uses thin film technology to provide 256 steps of variable resistance. The gate and source connections of the integrated MOSFETs form a variable resistor bridge, which is used to create 256 different resistance values. The variable resistor is connected between the input and output, and the voltage applied to the bridge will result in a corresponding resistance value, which is determined by the number of steps selected. The select pin is used to select from among the available wiper positions, and the current will flow from the input to the output pin, in proportion to the selected resistance value.

The number of steps between the input and output pins can be adjusted using an external reference voltage. The address pin, along with two control pins (A and B) allow the user to program a given number of steps between the two pins. The device also has a lock pin which can be used to lock the device in its present configuration, preventing accidental changes.

The AD5246BKS100-R2 is designed to operate over a wide range of environmental conditions, making it extremely reliable. Its surface mount package and low power requirements make it ideal for applications where space is at a premium. It is also very easy to program and is suitable for use in many different types of systems.

The AD5246BKS100-R2 is an integral part of many systems and its superior performance makes it the perfect solution for a variety of demanding applications. With its high reliability and accurate calibration, this version of the DPOT is ideal for many industrial, automotive, and consumer applications.