LM339ADRG4

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The LM339ADRG4 is a linear-comparator that is manufactured by Texas Instruments. The device is part of the industry-standard LM339 series, which includes a wide variety of applications across a wide range of industries. This particular device is a low-power quad operational amplifier with open-collector outputs.

The LM339ADRG4 is designed to achieve extremely high speed and low power operations and is suitable for use in a variety of environments, from automotive and telecom to medical and aerospace applications. The device features low voltage operation, a wide common-mode input range, low input and output offset voltage, low input bias current, and high open-loop gain. Its applications include motor control sensing, gain setting circuits, audio sound control and vibration sensing.

Application Field

The LM339ADRG4 is suitable in applications wherever a low-power quad operational amplifier with open-collector outputs is needed. It is commonly used in applications such as motor control sensing, gain setting circuits, audio sound control and vibration sensing. It is also used in the construction of active filters, active current sources, and comparators.

The device is ideal for use in aerospace, automotive, industrial and general-purpose applications in which high speed and low power operation is required. It has a wide operating temperature range of -55°C to +85°C and can operate over ratiometric power supplies from 2.7V to 36V. Its high bandwidth and low power consumption makes it ideal for reducing power consumption in digital logic and analog systems.

Working Principle

At the heart of the design of the LM339ADRG4 is an LM339 quad operational amplifier. The device includes four independent, high-gain and wide bandwidth amplifiers with open-collector outputs. The amplifiers provide an output level of 0V when the input voltage is higher than a certain threshold, while they deliver a voltage level of Vcc when the input voltage is lower than a certain threshold. When the voltages of the two input pins are equal, the output tends to be switch back and forth between the supply voltages.

The open-collector output is designed to sink current as opposed to supplying current. This means that it can be used in a variety of configurations and can be interfaced with many different types of control circuits, including logic gates and flip flops. The open-collector output configuration also allows for a variety of output operations from analog to digital, depending on the particular requirements of the application.

The LM339ADRG4 features wide common-mode input range, low input and output offset voltage, low input bias current, and high open-loop gain. The device is protected against electrostatic discharge (ESD) up to a level of 2000V and its lead-free, RoHS-compliant package ensures excellent RF compatibility and reliability. It is also protected against over-voltage and over-current conditions.

The LM339ADRG4 offers reliable operation over a wide range of temperature and voltage conditions and is immune to oscillations in wide common-mode input range. It is suitable for several general consumer applications, such as level-sensing, audio sound control, vibration sensing, and motor control sensing. It is also an incredibly useful device in the context of active current sources, active filters, and comparators.

Conclusion

The LM339ADRG4 is a quad operational amplifier with open-collector outputs from Texas Instruments. It is part of the industry-standard LM339 series of devices and is designed for use in a variety of environments, from automotive and telecom to medical and aerospace applications. Its applications include motor control sensing, gain setting circuits, audio sound control and vibration sensing. The device offers reliable operation over a wide range of temperature and voltage conditions and is immune to oscillations in wide common-mode input ranges. In conclusion, the LM339ADRG4 is a powerful tool for tackling any level of measurement challenge.

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