Voltage References

Voltage references are electronic devices that provide a fixed voltage. They provide a constant voltage regardless of external factors like the load on the device or fluctuations in the power supply.


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. 


Types of voltage references

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%. 


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 analog-to-digital converters. They are also used in scientific applications and in medical equipment where voltage variations need to be tested regularly. 


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Description Price Nominal Voltage Package Type Reference Type Initial Accuracy Mounting Type Topology Maximum Output Current Maximum Input Voltage Minimum Output Voltage Maximum Output Voltage Pin Count Line Regulation Load Regulation Dimensions
RS Stock No. 145-6840
Mfr. Part No.LT1634BCS8-1.25#PBF
$5.773
Each (In a Tube of 50)
units
1.25V SOIC Fixed ±0.05 % Surface Mount Shunt 1µA - 1.25 V 5 V 8 - - 5.004 x 3.98 x 1.498mm
RS Stock No. 822-5907
Mfr. Part No.LT1634BCS8-1.25#PBF
$9.87
Each (In a Pack of 2)
units
1.25V SOIC Fixed ±0.05 % Surface Mount Shunt 1µA - 1.25 V 5 V 8 - - 5.004 x 3.98 x 1.498mm
RS Stock No. 779-8903
Mfr. Part No.LM399H#PBF
$18.32
Each
units
6.95V TO-46 Fixed ±5 % Through Hole Shunt 10mA - - 6.95 V 4 - - 10.389 (Dia.) x 5.943mm
RS Stock No. 153-3612
Mfr. Part No.LT1461CCS8-3.3#PBF
$3.523
Each (In a Tube of 100)
units
3.3V SOIC Fixed ±0.04 % Surface Mount Series 100mA 20 V - 3.3 V 8 12 ppm/V 40 ppm/V 5.004 x 3.988 x 1.498mm
RS Stock No. 761-8285
Mfr. Part No.LT1461CCS8-3.3#PBF
$5.75
Each
units
3.3V SOIC Fixed ±0.04 % Surface Mount Series 100mA 20 V - 3.3 V 8 12 ppm/V 40 ppm/V 5.004 x 3.988 x 1.498mm
RS Stock No. 145-0736
Mfr. Part No.LM399H#PBF
$19.29
Each (In a Tube of 20)
units
6.95V TO-46 Fixed ±5 % Through Hole Shunt 10mA - - 6.95 V 4 - - 10.389 (Dia.) x 5.943mm
RS Stock No. 160-0691
Mfr. Part No.ADR4530ARZ
$9.31
Each (In a Tube of 98)
units
3V SOIC Fixed ±0.02 % Surface Mount Series 10mA 15 V - 3 V 8 10 ppm/V 120 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 802-3893
Mfr. Part No.ADR4530ARZ
$10.97
Each
units
3V SOIC Fixed ±0.02 % Surface Mount Series 10mA 15 V - 3 V 8 10 ppm/V 120 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 145-6171
Mfr. Part No.LT1021CCN8-10#PBF
$8.62
Each (In a Tube of 50)
units
10V PDIP Fixed ±0.05 % Through Hole Series/Shunt 10mA 40 V 9.995 V 10.005 V 8 4 ppm/V 100 ppm/mA 10.16 x 6.48 x 3.3mm
RS Stock No. 545-5562
Mfr. Part No.LT1021CCN8-10#PBF
$14.74
Each
units
10V PDIP Fixed ±0.05 % Through Hole Series/Shunt 10mA 40 V 9.995 V 10.005 V 8 4 ppm/V 100 ppm/mA 10.16 x 6.48 x 3.3mm
RS Stock No. 155-6695
Mfr. Part No.LT1461CIS8-2.5#PBF
$4.104
Each (In a Tube of 100)
units
2.5V SOIC Fixed ±0.08 % Surface Mount Series 100mA 20 V - 2.5 V 8 12 ppm/V 40 ppm/mA 5.004 x 3.988 x 1.498mm
RS Stock No. 154-6181
Mfr. Part No.LT1790BIS6-5#TRMPBF
$4.289
Each (On a Reel of 500)
units
5V TSOT-23 Fixed ±0.1 % Surface Mount Series - 20 V 4.995 V 5.005 V 6 220 ppm/V 250 ppm/V, 300 ppm/V 2.9 x 1.75 x 0.9mm
RS Stock No. 779-9283
Mfr. Part No.LT1461CIS8-2.5#PBF
$7.35
Each (In a Pack of 2)
units
2.5V SOIC Fixed ±0.08 % Surface Mount Series 100mA 20 V - 2.5 V 8 12 ppm/V 40 ppm/mA 5.004 x 3.988 x 1.498mm
RS Stock No. 761-8484
Mfr. Part No.LT1790BIS6-5#TRMPBF
$6.64
Each
units
5V TSOT-23 Fixed ±0.1 % Surface Mount Series - 20 V 4.995 V 5.005 V 6 220 ppm/V 250 ppm/V, 300 ppm/V 2.9 x 1.75 x 0.9mm
RS Stock No. 153-3527
Mfr. Part No.LT1460GCZ-2.5#PBF
$3.59
Each (In a Bag of 100)
units
2.5V TO-92 Fixed ±0.25 % Through Hole Series - 30 V 2.494 V 2.506 V 3 60 ppm/V 2800 ppm/mA 4.57 x 3.56 x 4.57mm
RS Stock No. 912-8740
Mfr. Part No.AD586LRZ
$17.90
Each (In a Tube of 98)
units
5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 36 V 4.998 V 5.003 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 545-7243
Mfr. Part No.LT1460GCZ-2.5#PBF
$6.73
Each
units
2.5V TO-92 Fixed ±0.25 % Through Hole Series - 30 V 2.494 V 2.506 V 3 60 ppm/V 2800 ppm/mA 4.57 x 3.56 x 4.57mm
RS Stock No. 709-5415
Mfr. Part No.AD586MNZ
$29.17
Each
units
5V PDIP Fixed ±0.04 % Through Hole Series 10mA 36 V 4.998 V 5.002 V 8 100 μV/V 400 μV/mA 9.27 x 7.24 x 3.43mm
RS Stock No. 158-5253
Mfr. Part No.AD586MNZ
$25.08
Each (In a Tube of 50)
units
5V PDIP Fixed ±0.04 % Through Hole Series 10mA 36 V 4.998 V 5.002 V 8 100 μV/V 400 μV/mA 9.27 x 7.24 x 3.43mm
RS Stock No. 427-183
Mfr. Part No.AD586LRZ
$20.91
Each
units
5V SOIC Fixed ±0.05 % Surface Mount Series 10mA 36 V 4.998 V 5.003 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm