MAX5490
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MAX5490

100kΩ Precision-Matched Resistor-Divider in SOT23

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

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Part Models 17
1ku List Price Starting From $1.87
Features
  • 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
Additional Details
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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-to-end resistance of 100kΩ. 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.

Applications

  • Automated Test Equipment (ATE)
  • Industrial Process Controls
  • Instrumentation
  • Medical Equipment
  • Precision Gain Setting
  • Wireless Base Stations
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Part Models 17
1ku List Price Starting From $1.87
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MAX5490

Documentation

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Data Sheet

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UPDATED 03/22/2005
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MAX5490: 100kΩ Precision-Matched Resistor-Divider in SOT23 Data Sheet (Rev.2)

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UPDATED 06/05/2006
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MAX5490: 100kΩ精密匹配的电阻分压器，SOT23封装 Data Sheet (Rev.2)

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UPDATED 03/01/2005
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MAX5490: 100kΩ精度マッチング済み抵抗分圧器、SOT23パッケージ Data Sheet (Rev.1)

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Reliability Data

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UPDATED 01/12/2023
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MAX5490 Reliability Data redirect icon

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Technical Articles

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UPDATED 03/08/2011
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Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface redirect icon

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UPDATED 04/01/2013
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The Zero-Transistor IC, a New Plateau in IC Design redirect icon

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UPDATED 07/01/2009
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Saving Energy: Little Things Mean a Lot redirect icon

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UPDATED 09/07/2009
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节能：一叶知秋 redirect icon

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UPDATED 07/02/2009
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省エネルギー：塵も積もれば山となる redirect icon

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UPDATED 05/10/2012
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Understanding Temperature Drift in a Precision Digital-to-Analog Converter (DAC) redirect icon

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UPDATED 04/01/2013
Chinese
高精度数/模转换器(DAC)的温漂 redirect icon

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UPDATED 07/23/2012
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高精度デジタル－アナログコンバータ(DAC)の温度ドリフトを理解する redirect icon

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UPDATED 09/28/2009
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Minimize Voltage Offsets in Precision Amplifiers redirect icon

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UPDATED 10/29/2009
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降低精密放大器的电压失调 redirect icon

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UPDATED 11/11/2009
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高精度アンプによる電圧オフセットの抑制 redirect icon

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UPDATED 12/19/2008
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Rail Splitter, from Abraham Lincoln to Virtual Ground redirect icon

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UPDATED 11/26/2012
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A Power Engineer: the Super Hero in a Design? redirect icon

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UPDATED 01/07/2013
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電源エンジニア：設計におけるスーパーヒーロー？ redirect icon

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UPDATED 03/10/2015
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Challenge the Conventional - Make Unipolar DACs Bipolar redirect icon

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UPDATED 07/09/2024
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How to Achieve 7.5-Digit Accuracy in Instrumentation Applications: Part 1 redirect icon

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UPDATED 07/09/2024
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如何在仪器仪表应用中实现七位半准确度：第一部分 redirect icon

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UPDATED 07/09/2024
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計測器アプリケーションにおいて7.5桁の精度を実現する方法：パート1 redirect icon

Design Note

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UPDATED 09/23/2005
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Implementing an External Reference and the Resulting Effect on Gain for the MAX149x Sigma-Delta Panel-Meter ADCs redirect icon

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UPDATED 02/17/2006
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通过外部基准调节MAX149x系列Σ-Δ面板表ADC的增益 redirect icon

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UPDATED 03/24/2006
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MAX149xシグマデルタパネルメータADCに外部リファレンスを実装したときに得られる利得に対する効果 redirect icon

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UPDATED 01/13/2011
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Precise Calibration of Dual-Slope ADCs redirect icon

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UPDATED 01/31/2011
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Precision Current-Transmitter/Source-Sink Calibrator Has Wide Compliance Range redirect icon

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Documentation

Technical Documents 14
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Data Sheet 1

MAX5490: 100kΩ Precision-Matched Resistor-Divider in SOT23 Data Sheet (Rev.2)

Reliability Data 1

MAX5490 Reliability Data

Design Note 3

Implementing an External Reference and the Resulting Effect on Gain for the MAX149x Sigma-Delta Panel-Meter ADCs
Precise Calibration of Dual-Slope ADCs
Precision Current-Transmitter/Source-Sink Calibrator Has Wide Compliance Range

Technical Articles 9

Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
The Zero-Transistor IC, a New Plateau in IC Design
Saving Energy: Little Things Mean a Lot
Understanding Temperature Drift in a Precision Digital-to-Analog Converter (DAC)
Minimize Voltage Offsets in Precision Amplifiers
Rail Splitter, from Abraham Lincoln to Virtual Ground
A Power Engineer: the Super Hero in a Design?
Challenge the Conventional - Make Unipolar DACs Bipolar
How to Achieve 7.5-Digit Accuracy in Instrumentation Applications: Part 1

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. View our quality and reliability program and certifications for more information.

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Precision-Matched Resistor-Divider in SOT23

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