DS1858E-050

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The DS1858E-050 is part of Texas Instruments\' broad line of potentiometers that can be used in a variety of applications. The device is capable of digital configuration options and uses the popular dual-slope A/D converter technology. It has a variety of adjustable and fixed settings to meet the needs of virtually any application. The DS1858E-050 is designed for applications requiring precise control over parameters or variables such as resistance, current, or voltage.

Overview of features and benefits

• Pin-selectable resolutions for digital and analog output
• Versatility with a range of adjustable, fixed, and torque options
• Integrated end-to-end resistors and end-to-end latching to save cost and improve accuracy
• Very low power consumption
• High density with 16-bit resolution to provide better accuracy and control

Application Field

The DS1858E-050 is suitable for a variety of applications requiring accurate control of a variable. Examples of suitable applications include, but are not limited to, adjustable sorting, distance measuring, closed-loop motor control, variable speed control, and medical instruments.

The potentiometer is an ideal choice when precise control over variables such as resistance, current, or voltage is required. The high resolution, low power features make it ideal for battery-operated applications. The integrated end-to-end resistors and latching features reduce the cost and improve accuracy.

Working Principle

The DS1858E-050 uses a dual-slope A/D converter to measure the voltage across two terminals, which together form a current segment. The A/D converter periodically samples the voltage, then monitors the rate of change. If a higher rate of change is detected, the position of the potentiometer is decreased, which will increase the distance between the two terminals. Conversely, if a lower rate of change is detected, the position of the potentiometer is increased, which will decrease the distance between the two terminals.

The pin-selectable resolutions provide digital and analog output options. The user can set the resolution to 12-bit, 16-bit, or even higher in order to maximize the accuracy of the device. The DS1858E-050 also offers a variety of adjustable and fixed settings to meet the needs of virtually any application.

Conclusion

The DS1858E-050 is a high precision device that is well-suited for applications requiring precise control over parameters or variables such as resistance, current, or voltage. The device offers a range of adjustable, fixed and torque options. It has a pin-selectable resolution for digital and analog output, integrated end-to-end resistors for improved accuracy and very low power consumption. The device allows for high density with 16-bit resolution to provide better accuracy and control.

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