DS1667-010

Digital Potentiometers Overview

The DS1667-010 is a dual digital potentiometer IC featuring two independent 256-tap resistive elements with a nominal resistance of 10 kOhms. It utilizes an 8-bit serial interface for setting and reading wiper positions, allowing for precise analog signal control via digital commands. The device integrates two high-gain, wide-bandwidth operational amplifiers alongside the potentiometers. Designed for low-power CMOS applications, it operates within a commercial temperature range of 0°C to +70°C and supports a supply voltage typically around 5V. The default wiper position upon power-up is set to 50%.

Digital Potentiometers Feature Summary

• Dual digitally controlled 256-position potentiometers with linear taper
• Integrated 3-wire serial interface for register read/write operations
• Two high-gain, wide-bandwidth operational amplifiers included
• Resistive elements are temperature-compensated to +/-20% end-to-end

Digital Potentiometers Applications

• Analog-to-digital and digital-to-analog converter circuits
• Variable gain amplifier configurations
• Programmable oscillators and timing circuits

Digital Potentiometers Part Context

The DS1667 belongs to the Dallas Semiconductor/Maxim Integrated family of dual solid-state potentiometers. It serves as a digital alternative to mechanical potentiometers in systems requiring remote adjustment or automated calibration. The component allows resistors to be stacked in series to achieve extended resolution, such as 512 sections, while maintaining compatibility with standard serial control logic.