DS1867S-10+

Digital Potentiometers Overview

The DS1867S-10+ is a dual digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated. It features two independent 256-position wiper settings controlled via a 3-wire serial interface. The device utilizes EEPROM memory to maintain wiper positions during power loss, ensuring nonvolatile operation. Standard resistance values include 10 kΩ for the DS1867S-10 variant. It operates from single 5V or ±5V supplies and supports cascading multiple devices on a single bus.

Digital Potentiometers Feature Summary

• Dual digitally controlled potentiometers with 256-position resolution
• Nonvolatile wiper storage using internal EEPROM arrays
• 3-wire serial interface (RST, CLK, DQ) for control and data transfer
• Stackable configuration option to double total end-to-end resistance

Digital Potentiometers Applications

• Inverting variable gain amplifier circuits
• Fixed gain attenuator applications
• Cascaded multi-device control systems

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type availability, as the datasheet lists 16-pin SOIC and 20-pin TSSOP options. Check RoHS compliance status and ensure supply voltage requirements match system design constraints before procurement.

Digital Potentiometers Selection Notes

Select the DS1867S-10+ for applications requiring 10 kΩ resistance. Choose higher suffix variants like DS1867S-50 or DS1867S-100 for different resistance needs. Ensure the PCB layout accommodates the specific package dimensions and that the serial clock frequency remains within the 10 MHz maximum limit.

Digital Potentiometers Part Context

The DS1867 series serves as the nonvolatile counterpart to the volatile DS1267 family. It integrates EEPROM technology to preserve settings without external backup batteries. This makes it suitable for industrial automation and signal conditioning where power cycling does not reset circuit parameters.

Digital Potentiometers Replacement Considerations

The DS1267 is the volatile equivalent of this component. Direct replacement requires verifying if nonvolatile retention is necessary for the specific application. Other digital potentiometers may require different serial protocols or supply voltages.