The DS1867-010 is a Dual Digital Potentiometer manufactured by Dallas Semiconductor (now Maxim Integrated). It contains two digitally controlled potentiometers, allowing for precise adjustment of resistance values in electronic circuits.

Applications

• Volume control in audio equipment
• Brightness control in displays
• Gain adjustment in amplifiers
• Calibration of sensors
• Power supply trimming

Features

• Dual Potentiometer: Contains two independent potentiometers in a single package
• Number of Taps: 256
• Resistance Value: 10kΩ (inferred from -010, needs verification)
• Digital Control: Controlled via a digital interface (typically I2C or SPI)
• Non-Volatile Memory: Stores wiper position during power down
• Single Supply Operation
• Low Power Consumption

Benefits

• Precise Resistance Adjustment: Provides fine-grained control over resistance values
• Programmable: Resistance can be adjusted via software
• Non-Volatile Memory: Retains wiper position even after power loss
• Simplified Circuit Design: Reduces the need for manual potentiometers
• Compact Size: Saves board space

Technical Specifications

The DS1867-010 integrates two digital potentiometers, each with 256 wiper positions. The total resistance is likely 10kΩ based on the "-010" designation, but this requires verification with the official datasheet. The potentiometers are controlled through a digital interface, typically I2C or SPI, allowing for easy integration with microcontrollers and other digital systems. The device includes non-volatile memory, which stores the wiper position during power-down, ensuring that the settings are retained. It operates from a single supply and consumes minimal power. Accessing datasheets from Dallas Semiconductor (Maxim Integrated) is essential for exact specifications.

Using this digital potentiometer enables precise, programmable resistance adjustments in electronic circuits, offering increased flexibility and control compared to using manual potentiometers. Its non-volatile memory and digital interface make it well-suited for applications requiring automated calibration or remote control.