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MAX5490
100kohm Precision-Matched Resistor-Divider in SOT23

Ultra-Precision Voltage-Dividers in a SOT23 Keep Drift to 3ppm/°C


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 192kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX5490 precision resistor-divider consists of two accurately matched resistors with access to the ends and center of the divider. This device offers excellent resistance matching of 0.035% (A grade), 0.05% (B grade), and 0.1% (C grade). The MAX5490 provides an extremely low resistance-ratio temperature drift of 1ppm/°C (typ) over -55°C to +125°C, and has an end-toend resistance of 100k. Resistance ratios from 1:1 to 100:1 are available. Five standard ratios are available (see Table 1 in the full data sheet), and custom ratios are also available upon request. The MAX5490 is ideal for precision gain-setting applications where tight resistance matching and low temperature drift are necessary.

The MAX5490 is available in a space-saving 3-pin SOT23 package, and is guaranteed over the military -55°C to +125°C temperature range.

Key Features   Applications/Uses
  • Resistance Ratios from 1:1 to 100:1
  • Custom Ratios Available Upon Request
  • Tight Initial Ratio Accuracy
        0.035% (MAX5490A)
        0.05% (MAX5490B)
        0.1% (MAX5490C)
  • Low 1ppm/°C (typ) Resistor-Ratio-Drift
  • Up to 80V Operating Voltage Across Sum of R1 and R2
  • Tiny 3-Pin SOT23 Package

     
  • Automated Test Equipment (ATE)
  • Industrial Process Controls
  • Instrumentation
  • Medical Equipment
  • Precision Gain Setting
  • Wireless Base Stations

    Diagram
    MAX5490: Block Diagram
    Block Diagram

    Application Notes
  • Application Note 3635: Implementing an External Reference and the Resulting Effect on Gain for the MAX149x Sigma-Delta Panel-Meter ADCs - MAX5490
  • Application Note 4344: Rail Splitter, from Abraham Lincoln to Virtual Ground - MAX5490
  • Application Note 4348: Minimize Voltage Offsets in Precision Amplifiers - MAX5490

    Design Guides
  • Digital Potentiometers (PDF)

    Reliability Reports
  • Reliability Report: MAX5490.pdf
  • Show FIT data for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-37 of 37

    MAX5490 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5490GA01000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490MA02000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490MB02000  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490VA10000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490VB10000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490XA25000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490XC25000+  
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490GA01000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490GB01000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490GC01000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490MA02000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490MB02000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490MC02000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490TA05000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490TB05000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490TC05000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490VA10000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490VB10000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490VC10000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490XA25000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490XB25000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490XC25000-T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3-2*
    -55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5490GA01000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490GB01000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490GC01000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490MA02000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490MB02000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490MC02000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490TA05000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490TB05000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490TC05000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490VA10000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490VB10000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490VC10000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490XA25000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490XB25000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5490XC25000+T    
    Active SOT;3 pin;8 mm²
    Outline Drawing: 21-0051 (PDF)
    Land Pattern: 90-0179 (PDF)
    Use pkgcode/variation: U3+2*
    -55°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • Topmark Coding: MAX5490
  • New Product Press Release 2004-08-03 

    Related Products
    MAX5491 Precision-Matched Resistor-Divider in SOT23

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    Document Ref.: 19-3337; Rev 2; 2005-03-22
    This page last modified: 2009-10-07


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