The DS1849B-PE from Maxim Integrated is a versatile dual digital potentiometer designed to deliver precision and reliability in a variety of applications. This integrated circuit allows for the digital control of resistance settings, making it an ideal solution for adjusting and calibrating system parameters electronically without the need for mechanical potentiometer adjustments.

Key Features

• Resistance Options: The device offers two potentiometers, each with 256-position and 10kΩ end-to-end resistance.
• Non-Volatile Memory: It features EEPROM to store the wiper position, ensuring the last settings are retained even after power is cycled.
• Interface: The DS1849B-PE is equipped with a 2-wire serial interface for easy communication with microcontrollers.
• Supply Voltage: It operates over a wide supply voltage range of 2.7V to 5.5V, making it suitable for both 3V and 5V systems.
• Temperature Range: The device is designed to function across an extended temperature range, from -40°C to +85°C, ensuring reliable performance in harsh environments.

Applications

The DS1849B-PE is well-suited for a broad range of applications, including:

• Automated product calibration
• Adjustable power supplies
• LCD screen brightness and contrast controls
• Audio/Video equipment tuning
• Gain and offset adjustment

Product Summary

Maxim Integrated's DS1849B-PE is a dual, non-volatile digital potentiometer that offers a compact and precise solution for digital resistance adjustment. Its EEPROM memory, wide voltage range, and extended temperature capabilities make it a highly adaptable component for sophisticated electronic systems. Whether it's for calibration, tuning, or user-adjustable settings, the DS1849B-PE provides a reliable and efficient way to achieve the desired resistance without the need for mechanical trimmers or variable resistors.