DS1667-050

Digital Potentiometers Overview

The DS1667-050 is a dual digital potentiometer IC from the Dallas Semiconductor/Maxim Integrated family, featuring two independent 256-position resistive elements with a nominal resistance of 50 kOhms. It utilizes an 8-bit register for wiper position control, accessible via a 3-wire serial interface. The device integrates two high-gain operational amplifiers and supports series stacking to achieve 512-section resolution. Designed for low-power CMOS applications, it operates within a commercial temperature range of 0°C to 70°C and is available in 20-pin DIP or SOIC packages.

Digital Potentiometers Feature Summary

• Dual digitally controlled 256-position potentiometers with 50 kOhm resistance
• Integrated 3-wire serial port for setting and reading wiper positions
• Two high-gain, wide bandwidth operational amplifiers included
• Resistive elements stackable to provide 512-section resolution

Digital Potentiometers Applications

• Analog-to-digital and digital-to-analog converters
• Variable oscillators
• Variable gain amplifiers

Digital Potentiometers Part Context

The DS1667 belongs to the DS166x series of dual solid-state potentiometers manufactured by Dallas Semiconductor (later Maxim Integrated, now Analog Devices). This specific model provides dual channels with integrated op-amps, distinguishing it from single-channel variants like the DS1666 or non-amplified counterparts.