DS1869S-10+

Digital Potentiometers Overview

The DS1869S-10+ is a digital rheostat or potentiometer from the Dallastat family, manufactured by Analog Devices Inc./Maxim Integrated. It provides 64 uniform tap points over a standard resistance of 10 kΩ with ±20% tolerance. The device operates on differential supply voltages ranging from +2.7V to +8.0V relative to the -V input. It features nonvolatile EEPROM memory to maintain wiper position during power loss, supporting over 50,000 write cycles. The component is housed in an 8-SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Nonvolatile wiper position storage via EEPROM array
• Configurable control via single pushbutton, dual pushbutton, or digital source inputs
• Internal pull-ups and debounce circuitry for contact inputs
• Low idle supply current (2µA at 3.3V)

Digital Potentiometers Applications

• Volume and tone control in audio equipment
• Contrast and brightness adjustment in displays
• Dimmer control circuits

Digital Potentiometers Procurement Notes

Verify component status as the DS1869 series may be discontinued. Confirm RoHS compliance and MSL rating prior to integration. Ensure ordering suffixes match required packaging formats such as tubes or tape and reel variants if available.

Digital Potentiometers Selection Notes

Select the DS1869S-10+ specifically for 10 kΩ resistance requirements. Consider the DS1869S-50+ or DS1869S-100+ for alternative resistance values. Verify interface compatibility; the 'S' suffix indicates SOIC packaging, while DIP options exist for through-hole applications.

Digital Potentiometers Part Context

This component belongs to the Maxim Integrated/Dallastat line of electronic variable resistors. It serves as a solid-state replacement for mechanical potentiometers, offering durability and programmability. The DS1869 series includes variants with different resistance values and package types to suit various embedded design constraints.

Digital Potentiometers Replacement Considerations

Direct substitutes include other Dallastat models like the DS1669 series, though interface protocols differ. Verify pinout compatibility and voltage ranges when cross-referencing with generic digital potentiometers.