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. 106-7055
Mfr. Part No.REF02CSZ
PHP112.042
Each (In a Tube of 98)
units
5V SOIC Fixed ±1.0 % Surface Mount Series 8mA 40 V 4.95 V 5.05 V 8 150 ppm/V 150 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 522-8382
Mfr. Part No.REF02CSZ
PHP156.98
Each
units
5V SOIC Fixed ±1.0 % Surface Mount Series 8mA 40 V 4.95 V 5.05 V 8 150 ppm/V 150 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 661-9603
Mfr. Part No.TLV431AIDBZR
PHP12.008
Each (In a Pack of 5)
units
1.24 - 6V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 15mA - 1.24 V 6 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 922-2527
Mfr. Part No.TLV431AIDBZR
PHP13.985
Each (On a Reel of 3000)
units
1.24 - 6V SOT-23 Adjustable ±1.0 % Surface Mount Shunt 15mA - 1.24 V 6 V 3 - - 2.92 x 1.3 x 1mm
RS Stock No. 912-7078
Mfr. Part No.AD586KRZ
PHP353.395
Each (In a Tube of 98)
units
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 462-1904
Mfr. Part No.TLE2426ID
PHP61.75
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 230-804
Mfr. Part No.AD586KRZ
PHP506.63
Each
units
5V SOIC Fixed ±0.1 % Surface Mount Series 10mA 36 V 4.995 V 5.005 V 8 100 μV/V 400 μV/mA 5 x 4 x 1.5mm
RS Stock No. 179-1665
Mfr. Part No.TLE2426CD
PHP152.80
Each (In a Tube of 75)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 661-9580
Mfr. Part No.TLE2426IDR
PHP103.246
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 100-0167
Mfr. Part No.ISL21010DFH310Z-T7A
BrandIntersil
PHP96.12
Each (In a Pack of 5)
units
1.024V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 5.5 V - 1.024 V 3 100 μV/V 110 μV/mA 2.92 x 1.3 x 0.95mm
RS Stock No. 170-8085
Mfr. Part No.ISL21010DFH310Z-T7A
BrandIntersil
PHP64.664
Each (On a Reel of 250)
units
1.024V SOT-23 Fixed ±0.2 % Surface Mount Series 25mA 5.5 V - 1.024 V 3 100 μV/V 110 μV/mA 2.92 x 1.3 x 0.95mm
RS Stock No. 121-6914
Mfr. Part No.ADR510ARTZ-R2
PHP72.155
Each (On a Reel of 250)
units
1V SOT-23 Fixed ±0.35 % Surface Mount Shunt - - 0.9965 V 1.0035 V 3 - - 3.04 x 1.4 x 1.02mm
RS Stock No. 121-8839
Mfr. Part No.LM4040BIM3-2.5/NOPB
PHP27.541
Each (On a Reel of 1000)
units
2.5V SOT-23 Fixed ±0.2 % Surface Mount Shunt 15mA - - - 3 - 6 mV 2.92 x 1.3 x 0.93mm
RS Stock No. 535-9559
Mfr. Part No.LM4040BIM3-2.5/NOPB
PHP42.526
Each (In a Pack of 5)
units
2.5V SOT-23 Fixed ±0.2 % Surface Mount Shunt 15mA - - - 3 - 6 mV 2.92 x 1.3 x 0.93mm
RS Stock No. 620-0161
Mfr. Part No.TLE2426CD
PHP81.568
Each (In a Pack of 5)
units
- SOIC Adjustable - Surface Mount Series 20mA 40 V 1.98 V 20.2 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 671-0292
Mfr. Part No.LM336Z5
PHP19.43
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. 168-6332
Mfr. Part No.TL431ACLPR
PHP5.292
Each (On a Reel of 2000)
units
2.5 - 36V SOIC Adjustable ±0.5 % Surface Mount Shunt 100mA 37 V 2.5 V 36 V 8 - - 4.9 x 3.91 x 1.58mm
RS Stock No. 428-436
Mfr. Part No.TL431ACLP
PHP20.57
Each
units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
RS Stock No. 162-4726
Mfr. Part No.LM385Z-1.2/NOPB
PHP15.077
Each (In a Box of 1800)
units
1.235V TO-92 Fixed ±2.0 % Through Hole Shunt 20mA - - - 3 - 20 mV 5.2 x 4.19 x 5.2mm
RS Stock No. 145-1010
Mfr. Part No.TL431ACLP
PHP6.529
Each (In a Bag of 1000)
units
2.5 - 36V TO-92 Adjustable ±1.0 % Through Hole Shunt 100mA 37 V 2.5 V 36 V 3 - - 4.83 x 3.43 x 3.68mm
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%.