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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.

    1210 Products showing for Voltage References

    STMicroelectronics
    2.5 - 36V
    TO-92
    Adjustable
    ±0.25 %
    Through Hole
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    4.7 x 3.7 x 4.4mm
    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
    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
    Toshiba
    2.5 - 19V
    SSOP
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    40mA
    20 V
    2.49 V
    19 V
    5
    -
    -
    2.1 x 1.7 x 0.7mm
    Nisshinbo Micro Devices
    2.5 - 36V
    DMP
    Adjustable
    ±2.2 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    8
    -
    0.1 %
    5 x 5 x 1.6mm
    Nisshinbo Micro Devices
    2.5 - 36V
    DMP
    Adjustable
    ±2.2 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    8
    -
    0.1 %
    5 x 5 x 1.6mm
    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
    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
    Nisshinbo Micro Devices
    2.5 - 36V
    SOT-89
    Adjustable
    ±2.2 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    0.1 %
    4.5 x 2.5 x 1.5mm
    Texas Instruments
    1.235V
    TO-92
    Fixed
    ±2.0 %
    Through Hole
    Shunt
    20mA
    -
    -
    -
    3
    -
    20 mV
    5.2 x 4.19 x 5.2mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±1.5 %
    Through Hole
    Shunt
    20mA
    -
    2.462 V
    2.538 V
    3
    -
    10 mV
    4.83 x 3.43 x 3.68mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±4 %
    Through Hole
    Shunt
    10mA
    -
    2.39 V
    2.59 V
    3
    -
    10 mV
    5.2 x 4.19 x 5.2mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±3 %
    Through Hole
    Shunt
    20mA
    -
    -
    -
    3
    -
    20 mV
    5.2 x 4.19 x 5.2mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±4 %
    Through Hole
    Shunt
    10mA
    -
    2.39 V
    2.59 V
    3
    -
    10 mV
    5.2 x 4.19 x 5.2mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±3 %
    Through Hole
    Shunt
    20mA
    -
    -
    -
    3
    -
    20 mV
    5.2 x 4.19 x 5.2mm
    Nisshinbo Micro Devices
    2.5 - 36V
    SOT-89
    Adjustable
    ±2.2 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    0.1 %
    4.5 x 2.5 x 1.5mm
    Nisshinbo Micro Devices
    2.5 - 36V
    SOT-89
    Adjustable
    ±2.2 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    0.1 %
    4.5 x 2.5 x 1.5mm
    Analog Devices
    5V
    PDIP
    Fixed
    ±0.5 %
    Through Hole
    Series
    -
    40 V
    4.975 V
    5.025 V
    8
    0.01 %/V
    0.01 %/mA
    10.16 x 7.11 x 4.95mm
    onsemi
    2.5V
    TO-92
    Fixed
    ±1.5 %
    Through Hole
    Shunt
    20mA
    -
    -
    2.5 V
    3
    -
    -
    5.2 x 4.19 x 5.33mm
    Texas Instruments
    2.5V
    TO-92
    Fixed
    ±1.0 %
    Through Hole
    Shunt
    15mA
    -
    -
    -
    3
    -
    8 mV
    5.2 x 4.19 x 5.2mm
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