MAX5490

PRODUCTION

100kΩ Precision-Matched Resistor-Divider in SOT23

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

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • 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

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
MAX5490
100kΩ Precision-Matched Resistor-Divider in SOT23
MAX5490: Block Diagram
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 3

Technical Articles 9

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Hardware Ecosystem

Parts Product Life Cycle Description
Matched Resistors & Transistors 1
MAX5491
PRODUCTION Precision-Matched Resistor-Divider in SOT23
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