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

LM432MAX Application Field and Working principle

The LM432 is a versatile and dynamic linear device manufactured by National Semiconductor, specialized for the use as a voltage-controlled amplifier. It is made to be configured in series with any additional device and is able to generate variable-gain signals, for frequencies ranging from DC to higher than audio range.

Originally designed for audio applications, the LM432MAX can also be used in other fields, such as supplying a low-current supply AC signal to the rest of the system. It is also a good choice when medium or high gain accuracy, low noise and low-distortion signal output is required either in medical systems or in industrial control environments.

Working Principle

The LM432MAX is an active voltage-controlled amplifier, or VCA. It consists of two interconnected circuits, one of them acting as an amplifier and the other as a voltage-controlled attenuator. The LM432MAX works in the range of 1V to 4V and can provide gains of -1 to +26 dB.

The amplifier\'s gain is controlled by applying a voltage across a current-controlled potentiometer (the LM432MAX features several potentiometers to accommodate different settings) connected to the input of the amplifier. This voltage is called the control voltage and it is either generated internally within the amplifier, or externally supplied from an external source.

The input signal is then amplified by the amplifier circuit and attenuated by the voltage-controlled attenuator. The output of the amplifier is then sent out to the rest of the system. The LM432MAX features a gain control input, which can be used to adjust the overall gain.

Applications

The LM432MAX can be used in various applications, ranging from audio systems to medical instrumentation, industrial automation and control, and even in home appliances. Here are some of its most common uses:

• For studio recording, the LM432MAX can be used as an accentuate signal controlling device.
• It can be used as a dynamic compressor in audio systems.
• It can also be used as a voltage controlled microphone preamp.
• In medical instrumentation, the LM432MAX is used as an instrumentation amplifier.
• In industrial automation and control, the LM432MAX can be used to control the speed of motors, the temperature of ovens and other process automation related tasks.
• In home appliances, the LM432MAX is often used to control the speed of fans and other mechanical components.

Conclusion

The LM432MAX is a versatile and dynamic linear device that is well-suited for various applications ranging from audio systems to home appliances. Its ability to be adjusted and configured makes it a great choice when medium or high gain accuracy, low-noise and low-distortion signal output is required. It is capable of providing gains in the range of 1V to 4V, with gains ranging from -1 to +26 dB.

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