DS1844E-050

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Introduction

The DS1844E-050 digital potentiometer is a family of dual-input, single-output, digital potentiometers designed for data acquisition applications. The digital potentiometer is a computer controlled variable resistor. It consists of a variable input voltage, a variable resistance element, an output voltage, and a digital bus interface. By varying the input voltage, the resistance and hence the output voltage can be controlled to provide a controlled output. It is one of the most common tools used in data acquisition systems.

Application Field of DS1844E-050 Digital Potentiometer

The DS1844E-050 digital potentiometer is suitable for controlling a wide range of applications in industries and experimental laboratories including but not limited to the following:

• Motor control, where the output voltage is used to control the speed or rotation of electric motors.
• Voltage regulation in computer systems, where the output voltage is used to regulate the voltage on a system bus.
• Data acquisition, where the output voltage is used to measure the output of a sensor.
• Remote meter reading applications, where the output voltage is used to regulate the power output of a transmitter.
• Automotive and audio amplifiers, where the output voltage is used to control the power output of an amplifier.
• Industrial process control, where the output voltage is used to control the speed of a process.
• Actuators, where the output voltage is used to control the movement of an actuator.

Features of DS1844E-050 Digital Potentiometer

The DS1844E-050 digital potentiometer has the following features:

• Programmable range: The range of the digital potentiometer is programmable and can range from 0 to 28.5V.
• High resolution: The resolution of the digital potentiometer is 14 bit, which allows for fine adjustments in the output voltage.
• Independent adjustable: The two inputs of the digital potentiometer can be independently adjusted.
• Wide operating temperature range: The digital potentiometer can operate in a wide temperature range of -40°C to +85°C.
• Low power dissipation: The power dissipation of the digital potentiometer is low and it consumes only 0.37W.
• Compact size: The digital potentiometer has a small size of 9.2cm x 6.9 cm x 5cm, which makes it suitable for applications where space is a constraint.
• High reliability: The digital potentiometer has high reliability and can withstand mechanical shocks and vibrations.

Working Principle of DS1844E-050 Digital Potentiometer

The working principle of the DS1844E-050 digital potentiometer is quite simple. When two control voltage V1 and V2 are applied to the two input terminals of the device, the output of the device is proportional to the difference between the two control voltages, which is known as the “gain” of the device. The gain of the device is programmable and can range from 0 to 28.5V. The output of the device is controlled by the digital bus interface. By varying the control voltage, the resistance and hence the output voltage can be changed to provide a controlled output.

Conclusion

The DS1844E-050 digital potentiometer is a versatile and reliable device that is suitable for a wide range of applications in industries and laboratories. It is easy to integrate with other data acquisition systems and can provide a precise output voltage. The device is designed with a wide operating temperature range, a low power dissipation, and a compact size for improved flexibilities. Therefore, the DS1844E-050 digital potentiometer is an ideal choice for data acquisition, motor control, and other applications where precise voltage regulation is needed.

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