Overview

Features and Benefits

  • Two 256-Step (or 8-Bit) Digital Potentiometers
  • Stacking Configures Device as One 512-Step (or 9-Bit) Digital Potentiometer
  • Wipers Digitally Set and Read Through Serial Port
  • 3-Wire Serial Control Interface
  • Operating Ranges
    • Single +5V or ±5V Supplies
    • -40°C to +85°C

Product Details

The DS1267B has two 256-position potentiometers, with wiper positions each set by stored 8-bit values. The DS1267B communicates through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1267Bs can be linked or daisy-chained for control by a single processor.
The DS1267B dual digital potentiometer replaces the DS1267, which has been discontinued. The device is designed for flexibility, operating from a single +5V or dual ±5V supply. Maximum standby current is only 2µA.
Digital potentiometers improve upon mechanical devices with processor control and programmability, greater reliability and accuracy, and packaging options that facilitate automatic assembly. They are used for signal control in modems and phones, battery charging and control circuitry, tuning and calibration, offset trimming of operational amplifiers, gain control, and power-supply regulation.

Applications

  • Impedance Matching
  • Mechanical Potentiometer Replacement
  • Offset and Gain Control
  • Programmable Filters, Delays, Time Constant

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Documentation & Resources

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy


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Buy Now Pricing


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List Pricing


(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

 

Sampling


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