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MAX5430, MAX5431
±15V Digitally Programmable Precision Voltage-Dividers for PGAs


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Description
FULL DATA SHEET (PDF, 220kB)
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The MAX5430/MAX5431 are digitally programmable high precision resistor arrays for PGAs. The MAX5430/MAX5431 operate from a single +15V supply or dual ±15V supplies, and consume only 35µA supply current. These devices are intended for programmable-gain amplifier (PGA) applications and consist of fixed resistor dividers, digitally controlled contacts with four precision, noninverting gains of 1, 2, 4, and 8 with ratio accuracy of 0.025% (MAX5430A/MAX5431A), 0.09% (MAX5430B/MAX5431B), or 0.5% (MAX5430C/MAX5431C). The MAX5431 includes an on-chip matching resistor for op amp input bias-current compensation.

The MAX5430/MAX5431 are available in space-saving 8-pin SOT23 and 10-pin µMAX packages, and specified over the extended temperature range of (-40°C to +85°C).

Key Features   Applications/Uses
  • Four Noninverting PGA Gain Configurations:
    AV = 1, 2, 4, and 8
  • Precision 0.025% Ratio Accuracy
  • On-Chip Matching Resistor for Op Amp Bias- Current Compensation (MAX5431)
  • Single-Supply +12V to +15V, or Dual-Supply ±12V to ±15V Operation
  • Low 35µA Supply Current
  • CMOS/TTL Logic Compatible 2-Wire Parallel Interface
  • Space-Saving 8-Pin SOT23 and 10-Pin µMAX Packages
  • 3V Logic Compatibility

     
  • General-Purpose Programmable Noninverting Amplifiers
  • Programmable Instrumentation Amplifiers

    Key Specifications:   Digital Potentiometers
    Part Number POTs Per Pkg. Control Interface Wiper Memory Number of Steps End-to-End Resistance (kΩ) Res. Tol. (%) Max. Idle State Supply Current @5V (µA) Features Price**
    MAX5430  1 2-Wire Parallel Volatile 4 15 0.025 6  -  $1.26 @ 1k
    MAX5431  57 60
    Op-Amp Input Bias Current Comp. Resistor
    $1.43 @ 1k
    See All Digital Potentiometers (121)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    Document Ref.: 19-2222; Rev 2; 2005-08-04
    This page last modified: 2007-07-03



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