DS1869S-010+T&R

Digital Potentiometers Overview

The DS1869S-010+T&R is a nonvolatile digital rheostat from the Dallastat family, manufactured by Analog Devices Inc./Maxim Integrated. It provides 64 uniform tap points with a standard resistance of 10 kΩ. The device operates on a differential supply voltage ranging from 2.7V to 8.0V and maintains wiper position via an internal EEPROM array rated for over 50,000 writes. It supports control through contact closure inputs (UC, DC) or a digital source input (D), featuring internal pull-ups and debounce circuitry. The component is housed in an 8-pin SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Nonvolatile wiper storage using EEPROM memory cells retaining settings without power
• Dual control modes: single pushbutton, dual pushbutton, or digital serial interface
• Internal 100 kΩ pull-ups and hardware debounce for mechanical switch interfacing
• 64 discrete tap positions with linear taper across 10 kΩ, 50 kΩ, or 100 kΩ ranges

Digital Potentiometers Applications

• Volume and tone control in audio equipment
• Contrast and brightness adjustment in display systems
• Dimmer control circuits for lighting applications

Digital Potentiometers Procurement Notes

Verify the specific suffix 'T&R' indicates tape-and-reel packaging when sourcing. Confirm the '-010' designation corresponds to the 10 kΩ resistance value required for the design. Check current availability status as this series may be subject to discontinuation or limited stock constraints.

Digital Potentiometers Selection Notes

Select the DS1869S-010+T&R for designs requiring manual or digital adjustment of resistance up to 10 kΩ. Ensure the supply voltage difference between +V and -V remains within the 2.7V to 8.0V operational window. Consider the 400 Ω typical wiper resistance and 1 mA maximum wiper current limits when designing the load circuit.

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 programmable resistance values controlled by external logic or switches. The S variant denotes the surface-mount SOIC package option.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements are not explicitly listed in the provided documentation. Evaluate other Dallastat models like the DS1869S-050+ or DS1869S-100+ if only the resistance value differs. Verify that alternative components support the same 64-tap resolution and nonvolatile memory requirements.