DS1267E-10+T&R

Digital Potentiometers Overview

The DS1267E-10+T&R is a dual digital potentiometer IC from the Analog Devices/Maxim Integrated DS1267 family, housed in a 20-pin TSSOP package. It integrates two independent 256-position solid-state potentiometers with a nominal resistance of 10 kΩ per channel. The device operates on a single +5V supply (4.5V to 5.5V) and features an ultra-low power consumption design without requiring charge pumps. Control and data transfer are managed via a 3-wire serial interface consisting of RST, CLK, and DQ pins. Each wiper position is determined by an 8-bit value stored in a 17-bit I/O shift register. The resistive elements are temperature compensated to ±0.3 LSB relative linearity.

Digital Potentiometers Feature Summary

• Dual 256-position digitally controlled potentiometers with 10 kΩ nominal resistance
• 3-wire serial interface for setting and reading wiper positions
• Stacked configuration capability to double total resistance and resolution to 9 bits
• Cascade operation allows daisy-chaining multiple devices over a single bus

Digital Potentiometers Applications

• Inverting variable gain amplifier circuits
• Fixed gain attenuator configurations
• Multi-device control systems using daisy-chain topology

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as indicated in official documentation. Check for lead-free soldering compatibility if required by assembly processes. Ensure storage conditions adhere to specified limits to maintain reliability.

Digital Potentiometers Selection Notes

Select this model for applications requiring dual independent analog resistance control with digital precision. The 10 kΩ value suits moderate impedance circuits. Consider the stacked mode if higher resolution or doubled resistance is needed. Verify that the 3-wire serial interface timing requirements align with the controlling microprocessor capabilities.

Digital Potentiometers Part Context

This component belongs to the DS1267 series of dual digital potentiometers. Other variants in the series include different resistance values such as 50 kΩ and 100 kΩ, and alternative packaging options like 14-pin DIP and 16-pin SOIC. The 'E' suffix typically denotes industrial temperature range performance, while '+T&R' indicates tape and reel packaging.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements within the same family include other DS1267 variants with different resistance values or packages. Cross-family replacements require verification of serial interface compatibility and voltage levels.