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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.

    978 Products showing for Voltage References

    Each (In a Pack of 10)
    MYR1.382
    onsemi
    2.5 - 36V
    SOT-23
    Programmable
    ±1.0 %
    Surface Mount
    Shunt
    100mA
    -
    2.475 V
    36 V
    3
    -
    -
    3.04 x 1.4 x 1.01mm
    Each (In a Pack of 5)
    MYR5.416
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±0.5 %
    Surface Mount
    Shunt
    100mA
    -
    2.485 V
    2.51 V
    3
    -
    -
    2.92 x 1.3 x 0.93mm
    Each (In a Pack of 5)
    MYR7.696
    Texas Instruments
    5V
    SOIC
    Fixed
    ±1.0 %
    Surface Mount
    Shunt
    10mA
    -
    4.9 V
    5.1 V
    8
    -
    20 mV
    4.9 x 3.9 x 1.45mm
    Each (In a Pack of 5)
    MYR6.384
    Texas Instruments
    2.5V
    SOT-23
    Fixed
    ±0.8 %
    Surface Mount
    Shunt
    20mA
    -
    -
    2.5 V
    3
    -
    20 mV
    2.92 x 1.4 x 0.94mm
    Each (Supplied on a Reel)
    MYR5.416
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±0.5 %
    Surface Mount
    Shunt
    100mA
    -
    2.485 V
    2.51 V
    3
    -
    -
    2.92 x 1.3 x 0.93mm
    Each (Supplied on a Reel)
    MYR0.502
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    2.92 x 1.3 x 1mm
    Each (In a Pack of 5)
    MYR6.982
    Texas Instruments
    1.235V
    SOT-23
    Fixed
    ±2.0 %
    Surface Mount
    Shunt
    20mA
    -
    -
    1.2 V
    3
    -
    -
    2.92 x 1.3 x 0.93mm
    Each (Supplied on a Reel)
    MYR6.384
    Texas Instruments
    2.5V
    SOT-23
    Fixed
    ±0.8 %
    Surface Mount
    Shunt
    20mA
    -
    -
    2.5 V
    3
    -
    20 mV
    2.92 x 1.4 x 0.94mm
    Each (Supplied on a Reel)
    MYR6.982
    Texas Instruments
    1.235V
    SOT-23
    Fixed
    ±2.0 %
    Surface Mount
    Shunt
    20mA
    -
    -
    1.2 V
    3
    -
    -
    2.92 x 1.3 x 0.93mm
    Each (Supplied on a Reel)
    MYR2.747
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±2.0 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    2.92 x 1.3 x 1mm
    Each (In a Pack of 10)
    MYR2.747
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±2.0 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    2.92 x 1.3 x 1mm
    Each (In a Pack of 10)
    MYR0.502
    Texas Instruments
    2.5 - 36V
    SOT-23
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    100mA
    37 V
    2.5 V
    36 V
    3
    -
    -
    2.92 x 1.3 x 1mm
    Each
    MYR2.83
    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
    Each (In a Pack of 10)
    MYR0.559
    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
    Each (Supplied on a Reel)
    MYR5.33
    Texas Instruments
    11.5V
    SOT-23
    Precision
    ±0.2%
    Surface Mount
    Shunt
    -
    -
    -
    -
    3
    -
    -
    -
    Each (In a Pack of 5)
    MYR12.066
    Texas Instruments
    -
    SOIC
    Adjustable
    -
    Surface Mount
    Series
    20mA
    40 V
    1.98 V
    20.2 V
    8
    -
    -
    4.9 x 3.91 x 1.58mm
    Each (Supplied on a Reel)
    MYR5.216
    Texas Instruments
    2.5V
    SOT-23
    Precision
    ±0.1%
    -
    Shunt
    -
    -
    -
    -
    3
    -
    -
    -
    Each (In a Pack of 10)
    MYR4.471
    Texas Instruments
    2.5V
    SOIC
    Fixed
    ±4 %
    Surface Mount
    Shunt
    10mA
    -
    2.39 V
    2.59 V
    8
    -
    10 mV
    4.9 x 3.9 x 1.45mm
    • RS Stock No. 208-8605P
    • Mfr. Part No. LM4050AIM3-5.0/NOPB
    Each (Supplied on a Reel)
    MYR9.114
    Texas Instruments
    5V
    SOIC
    -
    0.1%
    Surface Mount
    -
    -
    -
    -
    -
    3
    -
    -
    -
    Each (Supplied on a Reel)
    MYR12.21
    Texas Instruments
    1.2V
    SOT-23
    Precision
    ±0.1%
    -
    Shunt
    -
    -
    -
    -
    3
    -
    -
    -
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