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MAX6325, MAX6341, MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 776kB)
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The MAX6325/MAX6341/MAX6350 are low-noise, precision voltage references with extremely low, 0.5ppm/°C typical temperature coefficients and excellent, ±0.02% initial accuracy. These devices feature buried-zener technology for lowest noise performance. Load-regulation specifications are guaranteed for source and sink currents up to 15mA. Excellent line and load regulation and low output impedance at high frequencies make them ideal for high-resolution data-conversion systems up to 16 bits.

The MAX6325 is set for a 2.500V output, the MAX6341 is set for a 4.096V output, and the MAX6350 is set for a 5.000V output. All three provide for the option of external trimming and noise reduction.

Key Features   Applications/Uses
  • Ultra-Low, 1ppm/°C Max Tempco
  • Very Low, 1.5µVp-p Noise (0.1Hz to 10Hz) (MAX6325)
  • ±0.02% Initial Accuracy (MAX6350)
  • ±15mA Output Source and Sink Current
  • Low, 18mW Power Consumption (MAX6325)
  • Industry-Standard Pinout
  • Optional Noise Reduction and Voltage Trim
  • Excellent Transient Response
  • 8-Pin SO Package Available
  • Low, 30ppm/1000h Long-Term Stability
  • Stable for All Capacitive Loads

 
  • Automated Test Equipment (ATE)
  • Digital Voltmeters
  • High-Accuracy Industrial and Process Control
  • High-Accuracy Reference Standard
  • High-Resolution A/D and D/A Converters
  • Precision Current Sources

    Key Specifications:  Voltage References
    Part Number VOUT
    (V)
    Temp. Coeff.
    (ppm/°C)
    Initial Accuracy
    (% max)
    ISUPPLY
    (µA)
    VSUPPLY
    (V)
    VSUPPLY
    (V)
    Noise 0.1Hz to 10Hz
    (µVpp)
    Features Package/Pins Smallest Available Pckg.
    (mm2)
    Oper. Temp.
    (°C)
    Price
    max @ +25°C max min max typ max w/pins See Notes
    MAX6325  2.5 1 0.04 3000 8 36 1.5 Series
    CDIP(N)/8
    PDIP(N)/8
    SOIC(N)/8
    31
    -55 to +125
    -40 to +85
    0 to +70
    $6.69 @1k
    MAX6341  4.096 0.02 3200 2.4
    CDIP(N)/8
    PDIP(N)/8
    SOIC(N)/8
    $6.69 @1k
    MAX6350  5 0.02 3300 3
    CDIP(N)/8
    PDIP(N)/8
    SOIC(N)/8
    $6.69 @1k
    See All Voltage References (162)

    Diagram
    Typical Operating Circuit

    Pin Configuration

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    Document Ref.: 19-1203; Rev 1; 2001-12-18
    This page last modified: 2007-05-31


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