AD5220BR10-REEL7

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The AD5220BR10-REEL7 is a digital potentiometer which belongs to digital data acquisition. This device can provide a programmable control of amplification, gain, biasing, and impedance matching. It features 10 turn capability, digital resistors, and non-volatile wiper settings. It has the ability to change resistance in infinite steps and is programmable over a wide range of resistance values.

Features & Applications

The AD5220BR10-REEL7 comprises a 10 turn ceramic element and a resistor network device which enables it to accurately adjust resistance. The ceramic element consists of a spiral conductive track which is connected to integrated circuit (IC) and external terminals in order to regulate the resistance. The device provides an excellent accuracy of 1% and features a voltage rating of 2.7V to 10V. The AD5220BR10-REEL7 is compatible with a wide range of operating temperatures. It is also highly resistant to humidity and environmental changes.

The AD5220BR10-REEL7 is suitable for a variety of applications, particularly those involving gain and biasing adjustments, impedance matching and feedback network design. It is used for digital attenuator applications, such as audio level control, portable medical instrumentation, audio amplifiers, and other related applications. Due to its 10 turn capability, the device eliminates the need for mechanical encoders, delivering longer service life and smoother operation.

Working Principle

The AD5220BR10-REEL7 operates on a simple principle, allowing the user to adjust the resistance of the device via an external control voltage. The adjustable voltage ensures that the resistance between two terminals is the same. The resistance of the ceramic element is determined by the relative number of turns that are connected at its end points. When the control voltage is increased, the resistance increases while when it is decreased, the resistance drops.

The device works as a resistor network, and the resistance is divided proportionally between the two resistors, connected either in series or in parallel. The resistor network is connected to two terminals and the control voltage is sent to an integrated circuit. ThisIC controls the resistance and is connected to the external terminals.

By using this device, the user is able to adjust the resistance of the given circuit at any given time. The AD5220BR10-REEL7 also provides a programmable gain, biasing, and impedance matching. This makes it an ideal choice for a wide range of digital data acquisition applications.

Conclusion

The AD5220BR10-REEL7 is a digital potentiometer designed for digital data acquisition applications. It features a 10-turn ceramic element and resistor network, and enables accurate adjustment of resistance. The device offers a 1% accurate resistance rating, which makes it suitable for audio level control, portable medical instrumentation, audio amplifiers, and other related applications. The voltage rating of the device is 2.7V to 10V, while its wide temperature range ensures resistance to humidity and environmental changes. The device is programmable over a wide range of resistance values, providing a programmable gain, biasing, and impedance matching. Due to its 10-turn capability, the device eliminates the need for mechanical encoders, making it an ideal choice for a range of applications.

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