AD734BN

The linear analog multipliers and dividers are the components that are designed to multiply and divide the analog signals. The AD734BN is one of these components, which is specially designed for precision control of gain or attenuation in a broad range of applications, including audio processing, communication receivers, instrumentation, and so on. The device offers significant accuracy over a variety of temperatures and supply voltage conditions.

The AD734BN includes several features, such as high bandwidth, exceptional DC accuracy, low log-linear distortion, wide supply and temperature range, low noise, and low gain error. The device provides an adjustable gain range of ?3 dB to +3 dB and attenuation range of ?60 dB to 0 dB, making it an effective device for a range of audio applications. It also features an off-isolation that enables audio processing with a higher precision.

Application Field

The AD734BN is ideal for applications that require high-speed processing with excellent accuracy, such as audio processing, communication receivers, instrumentation, and so on. The device has a wide supply voltage range from 5V to 15V as well as a wide temperature range from –40°C to +85°C and can perform in various environments. Its adjustable gain and attenuation range is suitable for numerous audio applications.

The AD734BN is also used in audio preamplifiers, which require extremely accurate and wide dynamic range. Its feature of low log-linear distortion makes it suitable for these applications. The device also finds use in video signal processing for image and pattern recognition applications.

Working Principle

The AD734BN is a dual mode multiplier/divider configuration and it works as follows:

1. The first stage of the device is the input stage, which amplifies and attenuates the input signal before it is further processed.
2. The second stage is a multiplier circuit, which is responsible for multiplying the amplified and attenuated signal. The multiplier is a log-linear distortion circuit, which is designed to achieve the desired gain range.
3. The third stage is the signal shaping circuit, which improves the linearity of the output signal.
4. The final stage is the output stage, which provides an amplified signal with improved linearity.

The AD734BN device provides wide dynamic range, wide supply voltage range, low log-linear distortion and low gain error, making it suitable for different applications. Its adjustable gain range is suitable for audio applications, particularly for audio preamplifiers. The device also finds use in video signal processing for image and pattern recognition applications.