Voltage Reference | Adjustable & Fixed Shunt | RS
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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.

    1227 Products showing for Voltage References

    DiodesZetex
    2.5V
    TO-92
    Adjustable
    ±0.5 %
    Through Hole
    Shunt
    100mA
    36 V
    2.5 V
    36 V
    3
    -
    -
    4.8 x 3.8 x 4.7mm
    DiodesZetex
    3.3V
    SOT-23
    Fixed
    ±0.5 %
    Surface Mount
    Shunt
    5mA
    -
    -
    -
    3
    -
    -
    3 x 1.4 x 1mm
    STMicroelectronics
    2.048V
    SOT323-5L
    Precision
    1%
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    STMicroelectronics
    2.5V
    SOT323-5L
    Precision
    0.5%
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Maxim Integrated
    2.5V
    SO
    Precision
    ±0.02%
    Surface Mount
    -
    -
    36 V
    2.499 V
    2.501 V
    8
    45 ppm/V
    15 (Sourcing) ppm/mA, 30 (Sink) ppm/mA
    5 x 4 x 1.5mm
    Texas Instruments
    1.24 - 18V
    SOT-23
    Adjustable
    ±0.5 %
    Surface Mount
    Shunt
    70mA
    20 V
    1.24 V
    18 V
    3
    -
    -
    2.92 x 1.3 x 1mm
    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
    Texas Instruments
    -
    SC-70
    -
    -
    Surface Mount
    -
    -
    -
    -
    -
    5
    -
    -
    2 x 1.25 x 0.9mm
    Intersil
    2.6V
    SOT-23
    Fixed
    ±0.2 %
    Surface Mount
    Series
    -
    5.5 V
    -
    2.6 V
    3
    350 μV/V
    250 μV/mA
    2.92 x 1.3 x 0.95mm
    DiodesZetex
    2.5V
    SOT-23
    Adjustable
    ±1.0 %
    Surface Mount
    Shunt
    100mA
    36 V
    2.5 V
    36 V
    3
    -
    -
    3 x 1.4 x 1.1mm
    Intersil
    2.6V
    SOT-23
    Fixed
    ±0.2 %
    Surface Mount
    Series
    -
    5.5 V
    -
    2.6 V
    3
    350 μV/V
    250 μV/mA
    2.92 x 1.3 x 0.95mm
    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
    VSSOP
    Fixed
    ±0.1 %
    Surface Mount
    Series
    ±10mA
    18 V
    -
    2.5 V
    8
    1 ppm/V
    50 ppm/mA
    3.1 x 3.1 x 0.95mm
    Renesas Electronics
    2 to 5.5V
    SOT-23
    Precision
    0.2%
    Surface Mount
    Series
    -
    -
    -
    -
    3
    -
    -
    -
    Renesas Electronics
    1.25V
    SOT-23
    Precision
    ±1.0mV
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    STMicroelectronics
    3V
    SOT323-5L
    Precision
    1%
    Surface Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Renesas Electronics
    3.5 - 5.5V
    SOT-23
    Precision
    0.2%
    Surface Mount
    -
    -
    -
    -
    -
    3
    -
    -
    -
    DiodesZetex
    4.096V
    SOT-23
    Fixed
    ±1.0 %
    Surface Mount
    Shunt
    5mA
    -
    4.06 V
    4.14 V
    3
    -
    -
    3.04 x 1.4 x 1.02mm
    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
    Texas Instruments
    36V
    TO-92
    Adjustable
    0.5 %, 1 %, 2 %
    -
    Shunt
    -
    -
    -
    -
    3
    -
    -
    -
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