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. 103-9983
Mfr. Part No.MAX6250AESA+
$11.00
Each (In a Tube of 100)
units
5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 36 V 5 V 5 V 8 35 ppm/V 7 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 732-6762
Mfr. Part No.MAX6350CSA+
BrandMaxim
$15.76
Each
units
5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 36 V 5 V 5 V 8 30 ppm/V 6 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 681-1083
Mfr. Part No.MCP1541-I/TO
BrandMicrochip
$1.14
Each (In a Pack of 2)
units
4.096V TO-92 Fixed ±1.0 % Through Hole Series 20mA 7 V 4.055 V 4.137 V 3 350 μV/V 1.3 mV/mA 4.71 x 3.62 x 4.62mm
RS Stock No. 923-5586
Mfr. Part No.MAX6350CSA+
BrandMaxim
$13.82
Each (In a Tube of 100)
units
5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 36 V 5 V 5 V 8 30 ppm/V 6 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 923-3619
Mfr. Part No.REF102CU
$11.381
Each (In a Tube of 75)
units
10V SOIC Fixed ±0.025 % Surface Mount Series - 40 V 9.998 V 10.003 V 8 1 ppm/V 20 ppm/mA 4.9 x 3.91 x 1.58mm
RS Stock No. 165-4661
Mfr. Part No.MCP1541-I/TO
BrandMicrochip
$0.535
Each (In a Bag of 1000)
units
4.096V TO-92 Fixed ±1.0 % Through Hole Series 20mA 7 V 4.055 V 4.137 V 3 350 μV/V 1.3 mV/mA 4.71 x 3.62 x 4.62mm
RS Stock No. 921-0717
Mfr. Part No.AZ431LANTR-G1
$0.247
Each (In a Pack of 50)
units
1.24V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 100mA 18 V 1.24 V 18 V 3 - - 3 x 1.4 x 1.1mm
RS Stock No. 166-1784
Mfr. Part No.LM336Z5
$0.138
Each (In a Bag of 10000)
units
5V TO-92 Programmable ±1.0 % Through Hole Shunt 15 (Reverse)mA - 4 V 6 V 3 - - 5.2 x 4.19 x 5.33mm
RS Stock No. 671-0292
Mfr. Part No.LM336Z5
$0.558
Each (In a Pack of 5)
units
5V TO-92 Programmable ±1.0 % Through Hole Shunt 400mA - 4.8 V 5.2 V 3 - 20 mV 4.58 x 3.86 x 4.58mm
RS Stock No. 802-3893
Mfr. Part No.ADR4530ARZ
$8.14
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. 165-9105
Mfr. Part No.MAX6250ACSA+
$9.37
Each (In a Tube of 100)
units
5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 40 V 4.999 V 5.001 V 8 18 ppm/V 1 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 160-0691
Mfr. Part No.ADR4530ARZ
$6.46
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. 165-8319
Mfr. Part No.AZ431LANTR-G1
$0.133
Each (On a Reel of 3000)
units
1.24V SOT-23 Adjustable ±0.5 % Surface Mount Shunt 100mA 18 V 1.24 V 18 V 3 - - 3 x 1.4 x 1.1mm
RS Stock No. 145-6171
Mfr. Part No.LT1021CCN8-10#PBF
$8.433
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. 540-4160
Mfr. Part No.MAX6250ACSA+
$10.85
Each
units
5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 40 V 4.999 V 5.001 V 8 18 ppm/V 1 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 545-5562
Mfr. Part No.LT1021CCN8-10#PBF
$12.70
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. 166-2430
Mfr. Part No.KA431AZTA
$0.08
Each (On a Tape of 2000)
units
2.5 - 36V TO-92 Programmable ±1.0 % Through Hole Shunt 100mA - 2.5 V 36 V 3 - - 4.58 x 3.86 x 4.58mm
RS Stock No. 121-8963
Mfr. Part No.REF02AP
$4.183
Each (In a Tube of 50)
units
5V PDIP Fixed ±0.2 % Through Hole Series - 40 V 4.985 V 5.015 V 8 0.01 %/V 0.01 %/mA 9.81 x 6.35 x 4.57mm
RS Stock No. 533-8467
Mfr. Part No.LM4040AIM3-4.1/NOPB
$2.704
Each (In a Pack of 5)
units
4.096V SOT-23 Fixed ±0.1 % Surface Mount Shunt 15mA - - - 3 - 7 mV 2.92 x 1.3 x 0.93mm
RS Stock No. 809-5374
Mfr. Part No.TL431AILP
$0.368
Each (In a Pack of 5)
units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA - - 36 V 3 - - 5.21 x 4.19 x 5.34mm
Related Products
Precison Fixed and Adjustable Voltage Reference ICs utilsing ...
Description:
Precison Fixed and Adjustable Voltage Reference ICs utilsing series, shunt or series/shunt topologies and available in both through-hole and surface mount packages. Voltage References are available with initial accuracies of ±0.02 to ±2%.
Precison Fixed and Adjustable Voltage Reference ICs utilsing ...
Description:
Precison Fixed and Adjustable Voltage Reference ICs utilsing series, shunt or series/shunt topologies and available in both through-hole and surface mount packages. Voltage References are available with initial accuracies of ±0.02 to ±2%.