DS1803Z-100+T&R

Digital potentiometers, or DigiPots, are adjustable resistors that are used to modify or control circuits. The DS1803Z-100+T&R is a DigiPot specifically manufactured by Maxim Integrated and is used for a variety of applications with pin-programmable values for each setting. In this article, we will explore the application field and the underlying working principle of the DS1803Z-100+T&R DigiPot.

Application Field

The DS1803Z-100+T&R digital potentiometer is a 101-tap part that provides precision resistance-setting control. This product is ideal for a wide range of applications, including digital audio systems, system monitoring, test equipment, automotive digital controls, and medical equipment. It utilizes Maxim\'s proprietary ADJUST pin architecture to enable programming digital values directly on the part without the need for external programming devices or cores.

In addition, the DS1803Z-100+T&R allows for very fine small steps in variable settings, which makes it well-suited for low-level adjustment tasks. It is well-suited for applications requiring variable gains and minimum resolution settings with reliability, good long-term aging stability, and minimal loading in a compact package with no external components required.

Working Principle

The DS1803Z-100+T&R is a resistor-based digital potentiometer. It is a resistive element that can take on an infinite number of resistance values between minimum and maximum. It works by routing a reference voltage or current through the resistive elements in a string, and the position of the wiper determines how much voltage or current is routed through each element. The total resistance is equal to the sum of the individual resistors.

The DS1803Z-100+T&R digital potentiometer works by utilizing the ADJUST pin architecture that utilizes individual select pins to route the reference voltage to each of the 101 taps on the digital potentiometer. When the ADJUST pin is brought high or low, the reference voltage is routed to one tap and the corresponding tap value can be adjusted by the user. This gives the user the ability to adjust an individual tap value to the desired level with the help of an external programming device or core.

The DS1803Z-100+T&R digital potentiometer is a versatile component for many different types of applications. It is capable of providing high resolution, low-level adjustment of variable gains and resolution settings with reliability, good long-term aging stability, and minimal loading requirements in a small, easy-to-use package with no external components required.

Conclusion

The DS1803Z-100+T&R is a great choice for applications that require precision control of variable gains and resolution settings. With the ADJUST pin architecture, it makes programming digital potentiometers much easier, allowing users to quickly adjust a tap value without having to use external programming devices or cores. Additionally, its small, low power design makes it well-suited for applications that require a low-level adjustment of gains and resolution settings.