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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detalji proizvoda Proizvođač 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 Width Height Length Maximum Operating Temperature Minimum Operating Temperature
ON Semiconductor NCP431BISNT1G, Adjustable Shunt Voltage Reference 2.5V, 0.5% 3-Pin, SOT-23 ON Semiconductor 2.5V SOT-23 Programmable 0.5% Surface Mount Shunt - 2.51 V - 36 V 3 - - 3.04 x 1.4 x 1.01mm 1.4mm 1.01mm 3.04mm +85 °C -40 °C
ON Semiconductor NCP431BISNT1G, Adjustable Shunt Voltage Reference 2.5V, 0.5% 3-Pin, SOT-23 ON Semiconductor 2.5V SOT-23 Programmable 0.5% Surface Mount Shunt - 2.51 V - 36 V 3 - - 3.04 x 1.4 x 1.01mm 1.4mm 1.01mm 3.04mm +85 °C -40 °C
ON Semiconductor TL431BIDG, Adjustable Shunt Voltage Reference 2.49V, 0.4% 8-Pin, SOIC ON Semiconductor 2.49V SOIC Programmable 0.4% Surface Mount Shunt - 2.51 V - 36 V 8 - - 5 x 4 x 1.5mm 4mm 1.5mm 5mm +85 °C -40 °C
ON Semiconductor TL431BIDG, Adjustable Shunt Voltage Reference 2.49V, 0.4% 8-Pin, SOIC ON Semiconductor 2.49V SOIC Programmable 0.4% Surface Mount Shunt - 2.51 V - 36 V 8 - - 5 x 4 x 1.5mm 4mm 1.5mm 5mm +85 °C -40 °C
ON Semiconductor TL431CDG, Adjustable Shunt Voltage Reference 2.49V, 2.2% 8-Pin, SOIC ON Semiconductor 2.49V SOIC Programmable 2.2% Surface Mount Shunt - 2.56 V - 36 V 8 - - 5 x 4 x 1.5mm 4mm 1.5mm 5mm +70 °C 0 °C
ON Semiconductor TL431CDG, Adjustable Shunt Voltage Reference 2.49V, 2.2% 8-Pin, SOIC ON Semiconductor 2.49V SOIC Programmable 2.2% Surface Mount Shunt - 2.56 V - 36 V 8 - - 5 x 4 x 1.5mm 4mm 1.5mm 5mm +70 °C 0 °C
Microchip Technology LM4041CYM3-ADJ-TR, Adjustable Shunt Precision Voltage Reference 1.23V, ±0.5% 3-Pin, SOT-23 Microchip Technology 1.23V SOT-23 Adjustable, Precision ±0.5% Surface Mount Shunt 12mA 15 V - 10 V 3 - - 0.9 x 2.92 x 1.3mm 1.3mm 0.9mm 2.92mm +85 °C -40 °C
Microchip Technology LM4040CYM3-2.5-TR, Shunt Precision Voltage Reference 2.5V, ±0.5% 3-Pin, SOT-23 Microchip Technology 2.5V SOT-23 Precision ±0.5% Surface Mount Shunt 15mA 15 V - 2.5 V 3 - - 0.9 x 2.92 x 1.3mm 1.3mm 0.9mm 2.92mm +85 °C -40 °C
Microchip Technology LM4040DYM3-2.5-TR, Shunt Precision Voltage Reference 2.5V, ±1% 3-Pin, SOT-23 Microchip Technology 2.5V SOT-23 Precision ±1% Surface Mount Shunt 15mA 15 V - 2.5 V 3 - - 0.9 x 2.92 x 1.3mm 1.3mm 0.9mm 2.92mm +85 °C -40 °C
+10V Precision Voltage Reference Maxim - - - - - - - - - - - - - - - - - - -
+10V Precision Voltage Reference Maxim - - - - - - - - - - - - - - - - - - -
+5V, +10V Precision Voltage References Maxim - - - - - - - - - - - - - - - - - - -
+5V, +10V Precision Voltage References Maxim - - - - - - - - - - - - - - - - - - -
+5V, +10V Precision Voltage References Maxim - - - - - - - - - - - - - - - - - - -
+5V, +10V Precision Voltage References Maxim - - - - - - - - - - - - - - - - - - -
1ppm/°C +2.5V/+4.096V/+5V Voltage Refs Maxim - - - - - - - - - - - - - - - - - - -
1ppm/°C +2.5V/+4.096V/+5V Voltage Refs Maxim - - - - - - - - - - - - - - - - - - -
3ppm/°C Low-Dropout Voltage Ref
  • RS kat. broj 190-7814
  • robna marka Maxim
  • Pro. broj MAX6133AASA25+
Maxim - - - - - - - - - - - - - - - - - - -
3ppm/°C Low-Dropout Voltage Ref
  • RS kat. broj 190-4444
  • robna marka Maxim
  • Pro. broj MAX6133AASA25+
Maxim - - - - - - - - - - - - - - - - - - -
Analog Devices AD780BRZ, Adjustable Series/Shunt Voltage Reference 2.5V, ±0.04 % 8-Pin, SOIC Analog Devices 2.5V SOIC Programmable ±0.04 % Surface Mount Series/Shunt 10mA 36 V 2.499 V, 2.999 V 2 V, 3 V 8 10 μV/V 75 μV/mA 5 x 4 x 1.5mm 4mm 1.5mm 5mm +85 °C -40 °C
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