DS1669-10

Digital Potentiometers Overview

The DS1669-10 is a digital rheostat from the Dallastat family, offering 10 kΩ resistance with 64 uniform tap points. It operates on a differential supply voltage ranging from 4.5 V to 8 V. The device features nonvolatile EEPROM memory that retains wiper position during power loss, supporting over 80,000 write cycles. Control inputs include UC, DC, and D for single/dual pushbutton or digital interface modes. It is housed in an 8-pin DIP package and functions within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Nonvolatile wiper position storage via EEPROM
• Supports single pushbutton, dual pushbutton, and digital control interfaces
• Wide differential supply voltage range (4.5 V to 8 V)
• 64-step resolution with linear taper

Digital Potentiometers Applications

• Volume and tone control in audio equipment
• Contrast and brightness adjustment in displays
• Dimmer control circuits
• Electronic replacement for mechanical variable resistors

Digital Potentiometers Procurement Notes

Verify package type availability as the component is offered in both DIP and SOIC variants. Confirm lead-free status if required, indicated by the '+' suffix in ordering information. Check current production status as older revisions may be discontinued.

Digital Potentiometers Selection Notes

Select the DS1669-10 specifically for 10 kΩ applications; other values like 50 kΩ or 100 kΩ require different model numbers. Ensure the system provides a differential supply between 4.5 V and 8 V. Verify that the control logic levels are referenced correctly to the negative supply rail (-V).

Digital Potentiometers Part Context

The DS1669 series belongs to Maxim Integrated's Dallastat line of electronic digital rheostats. This specific part number denotes the 10 kΩ version in the standard 8-pin DIP package. It serves as a direct replacement for mechanical potentiometers in applications requiring digital adjustability and memory retention.

Digital Potentiometers Replacement Considerations

Direct pin-compatible alternatives include the DS1669-50 (50 kΩ) and DS1669-100 (100 kΩ) for different resistance requirements. The SOIC variant DS1669S-10 offers the same functionality in a surface-mount package.