DS3930E+

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The DS3930E+ is a digital potentiometer (also known as a digipot) that belongs to the data acquisition category. It is a versatile analog device that is widely used in a variety of applications. The DS3930E+ provides On-Board Terminal Protection, High Temperature Operation, and ESD Protection for reliable performance in demanding applications where these features are essential.

A digital potentiometer contains an array of resistors, connected in various combinations. These resistors are adjusted using an external control input, typically an analog voltage or a digital signal. While this externally-controlled resistance is constant, the resistance can be dynamically changed so that the termination can be varied. That is, it can be adjusted to suit a wide variety of applications.

The DS3930E+ is a very popular digipot used for various applications including voltage level shifting, low-level signal conditioning, and motor control. It has an On-Board Terminal Protection function which prevents damage due to over-voltage or transient conditions, increasing the reliability of the device. Additionally, it also provides high temperature operation and Electrostatic Discharge (ESD) protection, allowing it to be used in hazardous or extreme environments.

The working principle of the DS3930E+ is based on the concept of a tap-change potentiometer. A tap-change potentiometer is an integrated circuit with a pivoting resistor on its active side that is connected to a single terminal on one side and two other terminals on the other side. The direction of the current flow is determined by the direction of the pivot. As the potentiometer is turned, the current can go through either the single terminal and one of the two other terminals, or the two other terminals (simultaneously).

The DS3930E+ is a single-supply, 3-terminal device with two adjustment pins. It has a wide range of programmable current ratios, from 4:1 to 90:1, allowing for highly accurate voltage shifts where necessary. It also features ESD protection up to ±15kV and a monolithic construction, making it an ideal choice for many applications.

In conclusion, the DS3930E+ is a digital potentiometer that provides high-quality performance in demanding applications. It provides On-Board Terminal Protection, High Temperature Operation, and ESD Protection, making it ideal for use in hazardous or extreme environmental conditions. The device is widely used in voltage level adjustment, low-level signal conditioning and motor control applications, and its wide range of adjustable current ratios make it an ideal choice for highly accurate voltage shifts.

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