DS1801S+

Digital Potentiometers Overview

The DS1801S+ is a dual audio taper potentiometer IC featuring two digitally controlled, 65-position wipers with logarithmic resistive characteristics. It operates from a 2.7V to 5.5V supply and utilizes a 3-wire serial interface for setting and reading wiper positions. The device includes software mute functionality and zero-crossing detection to minimize noise during transitions. Key electrical parameters include a 45 kΩ resistance, ±20% tolerance, and a temperature coefficient of 750 ppm/°C. It is housed in a 16-pin SOIC package.

Digital Potentiometers Feature Summary

• Dual 65-position potentiometers with logarithmic (audio) taper
• Zero-crossing detection minimizes audible switching noise
• 3-wire serial interface supports daisy-chaining via COUT
• Software mute capability at position 64

Digital Potentiometers Applications

• Audio volume control circuits
• Digital attenuator designs
• Microcontroller-based audio systems

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer. Confirm RoHS compliance status as indicated on official documentation. Check for obsolete status or lifecycle changes before finalizing procurement plans.

Digital Potentiometers Selection Notes

Select this component for applications requiring precise digital control of analog audio levels. Ensure the system voltage falls within the 2.7V to 5.5V range. Consider the 45 kΩ resistance value and logarithmic response curve for appropriate gain staging.

Digital Potentiometers Part Context

The DS1801S+ belongs to the DS1801 series of dual audio taper potentiometers manufactured by Analog Devices Inc./Maxim Integrated. It is available in multiple packages including 14-pin PDIP, 14-pin TSSOP, and 16-pin SOIC variants.

Digital Potentiometers Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. Evaluate other dual digital potentiometers from the same manufacturer family for pin compatibility and functional equivalence.