DS1841X

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The DS1841X family of digital potentiometers offers accuracy, reliability and cost-effectiveness in a highly integrated package. The devices are designed for use in a wide range of applications demanding accurate and reliable control of resistance values, including automatic gain control and audio applications.

At the heart of each DS1841X is a two-pole X-axis analog prescaler and logarithm feedback networks. The integrated X-axis controls provide a high level of accuracy when combining resistance values of the X-axis with the value of the IC, allowing for precise signal control when dealing with ratio offset problems. The integrated linear feedback network additional requires minimal external components, making the device ideal for applications with limited space.

The devices support three or four serial digital potentiometers, each of which has an associated programmable gain. The applications determine the number of channels, gain range, slew rate required and resistance values. This can be in both differential and single ended modes. In addition, the device also supports active and passive low-pass filters for switching between gains as required by the application.

The DS1841X family provides a wide range of features to help simplify the user’s loop compensation process. This includes programmable gain, differential input, power-down control and digital mute. With differential inputs, the gains can be adjusted by using the external resistors, eliminating the need for costly external components. The device also includes an integrated supply-voltage monitor and watchdog timer, which helps to increase robustness and reduce noise susceptibility.

The DS1841X family is also available in a range of packages, including 8-Pin and 10-Pin SOIC, PDIP, and TSSOP. The 10-Pin and 14-Pin TSSOP packages provide additional functionality and easier integration into space-constrained designs. A range of power supply voltage is available, from 2.7V up to 5.5V.

By combining the features of the DS1841X family with a wide range of package sizes, the devices are ideally suited for a range of applications in the Data Acquisition - Digital Potentiometers market. With their innovative design, reliable operation and cost-effectiveness, users can find the perfect digital potentiometers to meet their needs.

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