AD8138AAR-EBZ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The AD8138AAR-EBZ is an integrated dual-channel differential amplifier designed for audio applications. Its flexibility and performance make it suitable for a wide variety of applications. This article will discuss the AD8138AAR-EBZ evaluation board and its working principles.

Application Field

The AD8138AAR-EBZ is an amplifier that is well-suited for a wide range of audio applications. It has an excellent signal-to-noise ratio, low distortion, and high common-mode rejection. This makes it an ideal candidate for audio mixing consoles, microphones, headphones, and speaker systems. It also works well with low-level signals, with improved linearity compared to conventional op-amps.

This amplifier can also be used in many other types of applications, such as medical instrumentation and industrial controls. It is also suitable for high-precision analog-to-digital and digital-to-analog converters, and can be used in instrumentation amplifiers, video line drivers, and active filters. The AD8138AAR-EBZ has a wide enough range of variable internal tuning factors to suit most of these various applications.

Working Principle

The AD8138AAR-EBZ consists of two separate gain stages: a differential amplifier and a power amplifier. The differential amplifier is made up of two field-effect transistors, which are connected in a common-source configuration. This configuration provides high common-mode rejection. The power amplifier consists of a complementary output stage and provides high-voltage output swing and drive capability.

The AD8138AAR-EBZ can be adjusted to achieve different levels of performance. Its built-in variable gm tuning factors and input/output buffer offsets can be used to tailor its performance. The gm tuning allows the user to adjust the overall gain of the amplifier. The offset adjustment allows the user to set the input and output levels to maximize performance.

The differential amplifier in the AD8138AR-EBZ provides high common-mode rejection. This allows it to effectively reject noise and other unwanted signals that may be present in the system. Additionally, its wide common-mode range allows it to be used in high-impedance applications, such as high-impedance microphones.

The power amplifier provides a high degree of voltage swing and current drive capability. This is beneficial for application that require a high degree of power output. The power amplifier also has a low-noise output stage, which ensures low distortion and good signal-to-noise ratio in audio applications.

The AD8138AAR-EBZ evaluation board makes it easy to test the performance of the AD8138AR-EBZ amplifier. The board includes buffers, attenuators, and power supplies to facilitate testing and evaluation. The board also has several LED indicators to indicate the current status of the amplifier.

Conclusion:

The AD8138AAR-EBZ is an excellent integrated dual-channel differential amplifier for audio applications overall. Its flexibility and performance make it suitable for a wide variety of applications. It has an excellent signal-to-noise ratio, low distortion, and high common-mode rejection. Additionally, its built-in variable gm tuning factors and input/output buffer offsets let the user tailor the performance of the amplifier. The AD8138AAR-EBZ evaluation board makes testing and evaluation easy.

The specific data is subject to PDF, and the above content is for reference