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. 732-9759
Mfr. Part No.MAX6225BCSA+
€4.49
Each
units
2.5V SOIC Fixed ±0.02 % Surface Mount Series 15mA 36 V 2.5 V 2.5 V 8 30 ppm/V 6 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 165-9105
Mfr. Part No.MAX6250ACSA+
€6.229
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. 799-7844
Mfr. Part No.MAX6176AASA+
€6.33
Each
units
10V SOIC Fixed ±0.05 % Surface Mount Series 30mA 40 V 9.995 V 10.005 V 8 10 ppm/V 900 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 190-6511
Mfr. Part No.MAX6008BEUR+T
€12.05
1 Pack of 10
Pack(s)
2.5V SOT-23 Precision 0.5% Surface Mount Shunt - - - - 3 - - 3.04 x 1.4 x 1.02mm
RS Stock No. 190-4444
Mfr. Part No.MAX6133AASA25+
€5.359
Each (In a Tube of 100)
units
2.5V SO Precision ±0.04% Surface Mount Series/Shunt - 12.6 V 2.49 V 2.501 V 8 30 μV/V 0.05 (Sourcing & Sink) mV/mA 5 x 4 x 1.5mm
RS Stock No. 190-4440
Mfr. Part No.MAX6126AASA30+
€4.918
Each (In a Tube of 100)
units
3V SO Precision ±0.02% Surface Mount Series/Shunt - 12.6 V - - 8 50 μV/V 30 (Sourcing & Sink) μV/mA 5 x 4 x 1.5mm
RS Stock No. 189-6863
Mfr. Part No.MAX6125EUR+T
€1.937
Each (On a Reel of 2500)
units
2.5V SOT-23 Fixed ±1.0 % Surface Mount Series - 12.6 V 2.45 V 2.55 V 3 50 μV/V 1 mV/mA 3.04 x 1.4 x 1.02mm
RS Stock No. 190-7811
Mfr. Part No.MAX6133A25+
€5.66
Each (In a Pack of 2)
units
2.5V μMax Precision ±0.06% Surface Mount Series/Shunt - 12.6 V 2.49 V 2.501 V 8 30 μV/V 0.05 (Sourcing & Sink) mV/mA 3.1 x 3.1 x 0.95mm
RS Stock No. 190-6490
Mfr. Part No.MAX6023EBT25+T
€12.45
1 Pack of 5
Pack(s)
2.5V UCSP Precision ±0.2% Surface Mount Series/Shunt - 12.6 V 2.49 V 2.505 V 5 140 μV/V 1.4 μV/μA 1.46 x 0.97 x 0.4mm
RS Stock No. 190-6532
Mfr. Part No.MAX6035AAUR25+T
€12.33
1 Pack of 5
Pack(s)
2.5V SOT-23 Precision 0.2% Surface Mount Series/Shunt - 33 V 2.49 V 2.505 V 3 20 μV/V 225 μV/mA 3.04 x 1.4 x 1.02mm
RS Stock No. 332-663
Mfr. Part No.MAX6241ACPA+
€12.37
Each
units
4.096V PDIP Fixed ±0.02 % Through Hole Series 15mA 40 V 4.095 V 4.097 V 8 18 ppm/V 1 ppm/mA 9.91 x 7.87 x 4.45mm
RS Stock No. 190-4441
Mfr. Part No.MAX6126B25+
€3.99
Each (In a Tube of 50)
units
2.5V μMax Precision ±0.1% Surface Mount Series/Shunt - 12.6 V - - 8 40 μV/V 25 (Sourcing & Sink) μV/mA 3.1 x 3.1 x 0.95mm
RS Stock No. 189-6884
Mfr. Part No.MAX6325CPA+
€10.265
Each (In a Tube of 50)
units
2.5V PDIP Fixed ±0.04 % Through Hole Series 15mA 40 V 2.499 V 2.501 V 8 18 ppm/V 1 ppm/mA 9.91 x 7.87 x 4.45mm
RS Stock No. 732-8005
Mfr. Part No.MAX6002EUR+T
€1.134
Each (In a Pack of 5)
units
2.5V SOT-23 Fixed ±1.0 % Surface Mount Series 400µA 12.6 V 2.48 V 2.53 V 3 200 μV/V 1.1 μV/μA 3.048 x 1.397 x 1.067mm
RS Stock No. 732-8030
Mfr. Part No.MAX6126A21+
€5.38
Each
units
2.048V μMAX Fixed ±0.02 % Surface Mount Series 10mA 12.6 V - - 8 40 μV/V 25 μV/mA 3.1 x 3.1 x 0.95mm
RS Stock No. 190-0274
Mfr. Part No.MAX6173AASA+
€5.67
Each (In a Pack of 2)
units
2.5V SOIC Fixed ±0.06 % Surface Mount Series 30mA 40 V 2.4985 V 2.5015 V 8 10 ppm/V 900 ppm/mA 5 x 4 x 1.5mm
RS Stock No. 191-3291
Mfr. Part No.LM4040AIM3-3.0+T
€1.016
Each (On a Reel of 2500)
units
3V SOT-23 Precision 0.1% Surface Mount Shunt - - - - 3 - - 3.04 x 1.4 x 1.02mm
RS Stock No. 190-7837
Mfr. Part No.MAX6241BCSA+
€4.218
Each (In a Pack of 5)
units
4.096V SO Precision ±0.02% Surface Mount - - 36 V 4.092 V 4.1 V 8 45 ppm/V 18 (Sink) ppm/mA, 9 (Sourcing) ppm/mA 5 x 4 x 1.5mm
RS Stock No. 190-4419
Mfr. Part No.DS4303R+T&R
€1.972
Each (On a Reel of 3000)
units
0.3 - 3.3V SOT-23 Adjustable - Surface Mount Shunt - 3.6 V 0.3 V 3.3 V 5 1 mV/V 5.5 mV/mA 3 x 1.75 x 1.3mm
RS Stock No. 190-0018
Mfr. Part No.REF02CSA+
€3.178
Each (In a Pack of 5)
units
5V SOIC Fixed ±1.0 % Surface Mount Series - 33 V 4.95 V 5.05 V 8 0.018 %/V 0.018 %/mA 5 x 4 x 1.5mm