MAX6129

Ultra-Low-Power Series Voltage Reference


Please check latest availability status for a specific part variant.

Description

The MAX6129 micropower, low-dropout bandgap voltage reference combines ultra-low supply current and low drift in a miniature 5-pin SOT23 surface-mount package that uses 70% less board space than comparable devices in an SO package. This series-mode voltage reference sources up to 4mA and sinks up to 1mA of load current. A wide 2.5V to 12.6V supply range, ultra-low 5.25µA (max) supply current, and a low 200mV dropout voltage make these devices ideal for battery-operated systems.

An initial accuracy of 0.4% and a 40ppm/°C (max) temperature coefficient make the MAX6129 suitable for precision applications. Additionally, an internal compensation capacitor eliminates the need for an external compensation capacitor and ensures stability with load capacitances up to 10µF.

The MAX6129 provides six output voltages of 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6129 is available in a 5-pin SOT23 package and in die form.
MAX6129: Typical Operating Circuit MAX6129: Typical Operating Circuit Enlarge+

Key Features

  • Ultra-Low 5.25µA (max) Supply Current
  • 4mA Output Source Current
  • 1mA Output Sink Current
  • ±0.4% (max) Initial Accuracy
  • 40ppm/°C (max) Temperature Coefficient
  • 2.5V to 12.6V Supply Range
  • Low 200mV Dropout
  • Stable with Capacitive Loads Up to 10µF
  • No External Capacitors Required
  • Miniature 5-Pin SOT23 Package
  • Applications/Uses

    • A/D and D/A Converters
    • Battery-Powered Systems
    • Handheld Instruments
    • Precision Power Supplies
    Part NumberVOUT
    (V)
    Temp. Coeff.
    (ppm/°C)
    Initial Accuracy
    (% max)
    ISUPPLY
    (µA)
    VSUPPLY
    (V)
    VSUPPLY
    (V)
    Noise 0.1Hz to 10Hz
    (µVpp)
    Oper. Temp.
    (°C)
    Package/PinsBudgetary
    Price
    max@ +25°CmaxminmaxtypSee Notes
    MAX6129A 
    2.048
    2.5
    3
    3.3
    4.096
    5
    400.452.712.630-40 to +85
    SOIC(N)/8
    $2.15 @1k
    MAX6129B 1001
    SOIC(N)/8
    $0.85 @1k
    See All Voltage References (171)
    Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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    Related Resources


    MAX6078B
    Low-Power, Low-Drift, Low-Noise Voltage Reference

    • ±0.04% Initial Accuracy
    • 10ppm/°C (Max) Temperature Drift
    • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V

    MAX6078A
    Low-Power, Low-Drift, Low-Noise Voltage Reference

    • ±0.04% Initial Accuracy
    • 10ppm/°C (Max) Temperature Drift
    • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V