Maxim Integrated DS1844E-100+ Quad Digital Potentiometer

The Maxim Integrated DS1844E-100+ is a versatile quad digital potentiometer designed to cater to a wide array of applications that require precise digital control over analog signals. This compact, integrated circuit simplifies the design of adjustable control interfaces, offering a reliable and efficient solution for volume control, filter adjustment, and feedback system tuning.

Key Features

• Multiple Channels: The DS1844E-100+ features four independent potentiometer elements, each with 100 positions, allowing for simultaneous control over multiple parameters within a circuit.
• Nonvolatile Memory: Each potentiometer's wiper position is stored in onboard nonvolatile (EEPROM) memory, ensuring settings are retained even when the device is powered off.
• Wide Operating Voltage: The device operates over a broad voltage range of 2.7V to 5.5V, making it suitable for use in both 3V and 5V systems.
• Serial Interface: Communication with the DS1844E-100+ is achieved through a simple 3-wire serial interface, compatible with SPI, QSPI, and MICROWIRE protocols, allowing for easy integration into existing digital systems.
• Compact Packaging: Offered in a 20-pin TSSOP package, the DS1844E-100+ is designed for space-saving on printed circuit boards, ideal for applications where space is at a premium.

Applications

The DS1844E-100+ is ideal for a variety of applications, including:

• Adjustable power supplies and voltage references
• Audio equipment for volume and tone control
• Calibration and trimming systems
• Feedback circuit tuning in communication systems

Product Specifications

The DS1844E-100+ offers a resistance value of 100 kΩ per potentiometer element, with a temperature coefficient of 750 ppm/°C, ensuring stable performance over a wide temperature range. Its end-to-end resistance tolerance is specified at ±20%, maintaining accuracy and consistency in various conditions.

By integrating the DS1844E-100+ into your design, you benefit from Maxim Integrated's reputation for quality and performance, ensuring a robust and reliable digital control solution for your analog applications.