DS1267S-050/TR

Digital Potentiometers Overview

The DS1267S-050/TR is a dual digital potentiometer IC from the DS1267 series, manufactured by Analog Devices Inc./Maxim Integrated. It features two independent 256-position (8-bit) wipers with a nominal resistance of 50 kOhms and linear taper. The device operates on a single +5V supply or ±5V supplies within a voltage range of 4.5V to 5.5V. Control is managed via a 3-wire serial interface, allowing for daisy-chaining multiple units. The component utilizes volatile memory for wiper position storage and is housed in a 16-pin SOIC-Wide package.

Digital Potentiometers Feature Summary

• Dual 256-step digital potentiometers with 50 kOhms nominal resistance
• 3-wire serial control interface supporting daisy-chain configuration
• Stacking capability allows configuration as a single 512-step (9-bit) potentiometer
• Ultra-low-power consumption with quiet, pumpless design

Digital Potentiometers Applications

• Fiber optic transceiver modules
• Cellular telephones and PDAs for RF/audio signal level adjustment
• Battery charging and control circuitry
• Operational amplifier offset trimming and gain control
• Power supply regulation and tuning calibration

Digital Potentiometers Procurement Notes

Verify the specific suffix '/TR' against official datasheets to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status and lead-free certification details directly with the manufacturer or authorized distributors, as these attributes are critical for procurement compliance.

Digital Potentiometers Selection Notes

Select this component when a dual-channel digital solution with 50 kOhms resistance is required. Ensure the system supports volatile memory requirements, as wiper positions reset upon power loss. Verify that the 3-wire serial interface timing matches the host processor capabilities and that the SOIC-Wide-16 package fits the PCB layout constraints.

Digital Potentiometers Part Context

This part belongs to the DS1267 family of dual digital potentiometers. Variants within the series differ primarily by resistance value (e.g., 10k, 50k, 100k) and package type (PDIP, SOIC). The 'S' designation indicates the SOIC package, while the numeric suffix denotes the resistance value.

Digital Potentiometers Replacement Considerations

Direct replacements include other DS1267 variants such as DS1267S-010 or DS1267S-100 if resistance values can be adjusted in the circuit design. Cross-model substitution requires verifying pin compatibility and electrical parameter alignment.