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    Voltage References

    Voltage references are electronic devices that provide a fixed output voltage. They provide a constant voltage regardless of external factors. This includes the load on the device, temperature or fluctuations in the power supply. Learn more in our Complete Guide to Voltage References.

    Voltage references have different characteristics depending on their purpose. Voltage references used in laboratory applications are designed to have extremely high precision and accuracy, whereas those used as regulators for computer power supplies are much cheaper but less precise.

    There are many different kinds of voltage references, generally categorised by type, tolerance, rated voltage, reference voltage and rated current. The most common tolerances are ±2%, ±1% and ±0.5%, but voltage references are available even up to ±40%.

    Voltage reference ICs come in a standard semiconductor package, such as PDIP, SO, SOIC and SOT-23. The pin count may also be combined with the package type, for example SO-8.

    Types of voltage references

    • Two-terminal shunt voltage reference
    • Three-terminal series voltage reference
    • Band-gap voltage reference
    • Low noise voltage reference
    • Micropower voltage reference

    What are voltage references used for?

    Voltage references can be used for a variety of different precision measurement and control systems such as power supplies in personal computers and analogue-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. Voltage references are also used in battery-powered devices.

    1035 產品顯示為 Voltage References

    Texas Instruments
    2.5V
    SC-70
    Fixed
    ±0.15 %
    Surface Mount
    Series
    5mA
    7.5 V
    -
    -
    3
    50 ppm/V
    50 ppm/mA
    2 x 1.25 x 0.9mm
    Texas Instruments
    2.5 - 36V
    TO-92
    Adjustable
    ±2.0 %
    Through Hole
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    4.83 x 3.43 x 3.68mm
    Renesas Electronics
    0.9V
    SOT-23
    Fixed
    ±0.2 %
    Surface Mount
    Series
    ±7mA
    5.5 V
    -
    0.9 V
    3
    350 μV/V
    350 μV/mA
    2.92 x 1.3 x 0.95mm
    Nisshinbo Micro Devices
    1.25 - 13V
    SOT-23
    Adjustable
    ±0.7 %
    Surface Mount
    Shunt
    30mA
    14 V
    1.25 V
    13 V
    5
    -
    -
    2.9 x 1.6 x 1.1mm
    Renesas Electronics
    2.5V
    SOT-23
    Precision
    1mV
    Surface Mount
    Series
    -
    -
    -
    -
    3
    -
    -
    -
    Renesas Electronics
    9 - 36V
    SOIC
    Precision
    ±0.025%
    Surface Mount
    Series
    -
    -
    -
    -
    8
    -
    -
    -
    Texas Instruments
    10V
    SOIC
    Precision
    0.05%
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    DiodesZetex
    1.24 - 18V
    SOT-23
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    20mA
    20 V
    1.24 V
    18 V
    3
    -
    -
    3.04 x 1.4 x 1.02mm
    onsemi
    0.6V
    TSOT-23
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    -
    20 V
    20 V
    -
    5
    1 mV
    8 mV
    2.9 x 1.6 x 0.9mm
    Microchip
    4.096V
    SOIC
    Precision
    0.1%
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Microchip
    1.02V
    SOIC
    Fixed
    ±0.08 %
    Surface Mount
    Series
    30mA
    5.5 V
    1.023 V
    1.025 V
    8
    50 ppm/V
    40 (Sink) ppm/mA, 70 (Source) ppm/mA
    4.9 x 3.9 x 1.5mm
    Texas Instruments
    3V
    SOT-23
    Fixed
    ±0.2 %
    Surface Mount
    Series
    5mA
    14 V
    -
    -
    5
    0.008 %/V
    0.12 %/mA
    2.92 x 1.6 x 1.02mm
    DiodesZetex
    1.24 - 10V
    SOT-23
    Adjustable
    ±2.5 %
    Surface Mount
    Shunt
    25mA
    -
    1.24 V
    10 V
    3
    -
    -
    3.04 x 1.4 x 1.02mm
    DiodesZetex
    1.22V
    SOT-23
    Fixed
    ±1.0 %
    Surface Mount
    Shunt
    20mA
    -
    1.21 V
    1.23 V
    3
    -
    20 mV
    3.04 x 1.4 x 1.02mm
    Texas Instruments
    2.5V
    SOT-23
    Fixed
    ±0.2 %
    Surface Mount
    Series
    20mA
    12 V
    -
    2.5 V
    5
    50 ppm/V
    120 ppm/mA
    2.92 x 1.6 x 1.02mm
    Texas Instruments
    2.5 - 36V
    SOIC
    Adjustable
    ±2.0 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    8
    -
    -
    4.9 x 3.91 x 1.58mm
    onsemi
    2.5 - 36V
    TO-92
    Adjustable
    ±2.2 %
    Through Hole
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    5.2 x 4.19 x 5.33mm
    onsemi
    1.235V
    TO-92
    Fixed
    ±2.0 %
    Through Hole
    Shunt
    20mA
    -
    1.205 V
    1.26 V
    3
    -
    20 mV
    5.2 x 4.19 x 8mm
    Texas Instruments
    2.048V
    SC-70
    Fixed
    ±0.15 %
    Surface Mount
    Series
    5mA
    7.5 V
    -
    -
    3
    50 ppm/V
    50 ppm/mA
    2 x 1.25 x 0.9mm
    Microchip
    2.5V
    SOT-23
    Fixed
    ±1.0 %
    Surface Mount
    Series
    20mA
    7 V
    2.475 V
    2.525 V
    3
    350 μV/V
    1.3 mV/mA
    2.9 x 1.3 x 0.95mm
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