DS1867E-010/T&R

Digital Potentiometers Overview

The DS1867E-010/T&R is a dual digital potentiometer with EEPROM, manufactured by Analog Devices Inc./Maxim Integrated. It features two digitally controlled 256-position potentiometers with a nominal resistance of 10 kΩ. The device operates from single 5V or ±5V supplies and maintains wiper positions via nonvolatile memory during power loss. Control is achieved through a 3-wire serial interface (RST, CLK, DQ). It supports stacked configurations for increased resistance and cascading for multi-device control. The component is housed in a 16-pin SOIC package and operates within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual 256-position digitally controlled potentiometers with 10 kΩ nominal resistance
• Nonvolatile wiper settings maintained by EEPROM memory cells
• 3-wire serial interface for setting and reading wiper positions
• Supports stacked configuration for doubled total resistance with same resolution

Digital Potentiometers Applications

• Inverting variable gain amplifier circuits
• Fixed gain attenuator applications
• Multi-device systems requiring cascaded digital potentiometer control

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. Ensure the manufacturer source is identified as Analog Devices Inc. or Maxim Integrated based on current corporate ownership structures.

Digital Potentiometers Selection Notes

Select this component when nonvolatile adjustment of analog signal paths is required without external memory. The 10 kΩ value suits moderate impedance applications. Consider the 3-wire serial interface compatibility with the host processor. Verify supply voltage requirements align with single 5V or ±5V operation constraints.

Digital Potentiometers Part Context

The DS1867 series serves as the nonvolatile counterpart to the volatile DS1267 digital potentiometer. It integrates EEPROM technology to retain settings across power cycles. The family includes variants with different resistance values such as 50 kΩ and 100 kΩ, all sharing the same control logic and pinout architecture.

Digital Potentiometers Replacement Considerations

The DS1267 is the volatile equivalent but lacks EEPROM retention. Other digital potentiometers may require different interface protocols or lack the stacked configuration capability. Verify pin compatibility and electrical characteristics before substituting.