Overview

Features and Benefits

  • 22kΩ to 3.7kΩ Adjustable Logarithmic Resistor with a 3.6kΩ Fixed Resistor
  • 128 Wiper Tap Points
  • On-Chip Temperature Sensor and ADC
  • 72-Byte Lookup Table (LUT)
  • I²C-Compatible Serial Interface
  • Address Pins Allow Up to Four DS1841s to Share the Same I²C Bus
  • Digital Supply of 2.7V to 5.5V
  • -40°C to +100°C Operating Range
  • 3mm x 3mm, 10-Pin TDFN Package

Product Details

The DS1841 is a 7-bit, logarithmic, nonvolatile (NV) digital resistor that features an on-chip temperature sensor and associated analog-to-digital converter (ADC). The integrated temperature sensor indexes a 72-byte NV lookup table (LUT) encompassing a temperature range from -40°C to +100°C. The LUT output can drive the resistor directly or be added to an NV initial-value register (IVR) to drive the resistor. This flexible LUT-based architecture allows the DS1841 to provide a temperature-compensated resistor output with arbitrary slope. Programming is accomplished by an I²C-compatible interface, which can operate at speeds of up to 400kHz.

Applications

  • Instrumentation and Industrial Controls
  • Linear and Nonlinear Compensation
  • Mechanical Potentiometer Replacement
  • Optical Transceivers

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

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.

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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