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. 111-1166
Mfr. Part No.REF195GSZ
MYR11.947
Each (In a Tube of 98)
units
5V SOIC Fixed ±0.04 % Surface Mount Series 30mA 18 V 4.99 V 5.01 V 8 8 ppm/V 8 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 523-7011
Mfr. Part No.REF195GSZ
MYR13.70
Each
units
5V SOIC Fixed ±0.04 % Surface Mount Series 30mA 18 V 4.99 V 5.01 V 8 8 ppm/V 8 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 111-2239
Mfr. Part No.ADR01ARZ
MYR10.036
Each (In a Tube of 98)
units
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 30 ppm/V 70 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 538-7289
Mfr. Part No.ADR01ARZ
MYR11.83
Each
units
10V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 9.99 V 10.01 V 8 30 ppm/V 70 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 158-0580
Mfr. Part No.ADR441ARZ
MYR22.311
Each (In a Tube of 98)
units
2.5V SOIC Fixed ±0.13 % Surface Mount Series 10mA 20 V 2.497 V 2.503 V 8 20 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 111-1151
Mfr. Part No.REF196GSZ
MYR11.947
Each (In a Tube of 98)
units
3.3V SOIC Fixed ±0.06 % Surface Mount Series 30mA 18 V 3.29 V 3.3 V 8 8 ppm/V 15 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 697-7751
Mfr. Part No.ADR441ARZ
MYR26.31
Each
units
2.5V SOIC Fixed ±0.13 % Surface Mount Series 10mA 20 V 2.497 V 2.503 V 8 20 ppm/V 50 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 523-6131
Mfr. Part No.REF196GSZ
MYR13.70
Each
units
3.3V SOIC Fixed ±0.06 % Surface Mount Series 30mA 18 V 3.29 V 3.3 V 8 8 ppm/V 15 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 168-6078
Mfr. Part No.TL1431ACZ
MYR1.272
Each (In a Bag of 2500)
units
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
RS Stock No. 545-5512
Mfr. Part No.LT1009CZ#PBF
MYR13.05
Each
units
2.5V TO-92 Fixed ±0.2 % Through Hole Shunt - - 2.495 V 2.505 V 3 - 10 mV 4.57 x 3.56 x 4.57mm
RS Stock No. 145-7107
Mfr. Part No.LT1009CZ#PBF
MYR9.379
Each (In a Tube of 100)
units
2.5V TO-92 Fixed ±0.2 % Through Hole Shunt - - 2.495 V 2.505 V 3 - 10 mV 4.57 x 3.56 x 4.57mm
RS Stock No. 322-3492
Mfr. Part No.TL1431ACZ
MYR1.80
Each
units
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
RS Stock No. 538-5980
Mfr. Part No.ADR06BRZ
MYR23.31
Each
units
3V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 2.997 V 3 V 8 30 ppm/V 70 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 620-0789
Mfr. Part No.REF02AP
MYR20.654
Each (In a Pack of 5)
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. 155-9345
Mfr. Part No.LTC6655BHMS8-3#PBF
MYR44.456
Each (In a Tube of 50)
units
3V MSOP Fixed ±0.025 % Surface Mount Series 20mA 13.2 V - 3 V 8 40 ppm/V 30 ppm/mA 3 x 3 x 0.86mm
RS Stock No. 111-1141
Mfr. Part No.REF195GPZ
MYR16.427
Each (In a Tube of 50)
units
5V PDIP Fixed ±0.04 % Through Hole Series 30mA 18 V 4.99 V 5.01 V 8 8 ppm/V 8 ppm/mA 9.27 x 7.24 x 3.43mm
RS Stock No. 697-8019
Mfr. Part No.REF198GSZ
MYR13.13
Each
units
4.096V SOIC Fixed ±0.05 % Surface Mount Series 30mA 18 V 4.086 V 4.106 V 8 8 ppm/V 8 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 919-9174
Mfr. Part No.LT1790BCS6-2.5TRMPBF
MYR10.111
Each (On a Reel of 500)
units
2.5V TSOT-23 Fixed ±0.1 % Surface Mount Series - 20 V 2.498 V 2.503 V 6 220 ppm/V 250 ppm/V, 300 ppm/V 2.9 x 1.75 x 0.9mm
RS Stock No. 661-9455
Mfr. Part No.REF3133AIDBZT
MYR10.84
Each
units
3.3V SOT-23 Fixed ±0.2 % Surface Mount Series 10mA 7 V 3.293 V 3.3 V 3 65 ppm/V 50 μV/mA 2.92 x 1.3 x 1mm
RS Stock No. 121-8963
Mfr. Part No.REF02AP
MYR17.26
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
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