DS1806S-050+

Digital Potentiometers Overview

The DS1806S-050+ is a six-channel digital potentiometer IC in a 20-pin SOIC package. It features six linear potentiometers with 50 kΩ end-to-end resistance and 64 tap positions each. Control is managed via a 3-wire serial interface (RST, DIN, CLK) using an 8-bit register per wiper. The device operates on a supply voltage of 2.7 V to 5.5 V with active current consumption of up to 2 mA. It supports cascading for multi-device control and includes absolute linearity of ±0.5 LSB and relative linearity of ±0.25 LSB.

Digital Potentiometers Feature Summary

• Six digitally controlled 64-position linear potentiometers
• 3-wire serial interface for reading and setting wiper positions
• Cascadable architecture allowing single processor control of multiple devices
• 50 kΩ standard resistance value with ±20% tolerance

Digital Potentiometers Applications

• Fixed gain attenuator circuits
• Digital volume control systems
• Programmable biasing networks
• Multi-channel impedance adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'S' confirms the 20-lead SOIC (300-mil) package variant. Confirm the '-050' designation corresponds to the 50 kΩ resistance version. Check RoHS compliance status as indicated by the '+' suffix in ordering information. Ensure the industrial temperature range (-40°C to +85°C) meets application requirements.

Digital Potentiometers Selection Notes

Select this component when six independent digital potentiometers are required in a single package. The 50 kΩ resistance value is suitable for moderate impedance applications. The 3-wire serial interface minimizes microcontroller pin usage. Consider the 64-position resolution for fine adjustment needs. Verify that the volatile memory type aligns with power-loss behavior requirements.

Digital Potentiometers Part Context

The DS1806 series includes variants with 10 kΩ, 50 kΩ, and 100 kΩ resistances. Package options include 20-lead DIP, SOIC, and TSSOP. The 'S' suffix specifically denotes the SOIC package. All variants share the same six-potentiometer architecture and serial control interface within the industrial temperature range.

Digital Potentiometers Replacement Considerations

Direct replacements must match the six-potentiometer configuration and 3-wire serial interface. Alternative packages (DIP, TSSOP) may be functionally compatible if pinout compatibility is verified. Different resistance values require circuit re-evaluation.