Voltage References

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We offer many types of voltage references from multiple manufacturers.

Voltage references are accurate, temperature-compensated voltage sources that provide specific output voltage values. Voltage reference ICs may be either shunt voltage reference (two-terminal) or series voltage reference (three-terminal) types.

A shunt voltage reference is usually designed to work over a wide range of currents. It is as simple to use as a Zener diode. Series voltage references are ideal for circuits with large changes in supply voltage or load current. They are especially useful with very large load currents as there is no series resistor between the reference and supply.

Our specialist products include precision voltage references for signal-conditioning applications using a single voltage source. A particularly popular offering is the TLV431 precision voltage reference. The TLV431 is a three terminal adjustable shunt reference offering excellent temperature stability and output current handling capability up to 20mA. The output voltage may be set to any chosen voltage between 1.24V and 18V by selection of two external divider resistors. It can be used as a replacement for Zener diodes in many applications requiring an improvement in Zener performance.

Fixed, adjustable and programmable variants are available in both shunt and series configurations. Reference voltages range from 0.5V to ±10V, while temperature coefficients cover 0.3ppm/°C to ±300ppm/°C.
 
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LM4040CIM3-2.5+T
LM4040CIM3-2.5+T - Voltage Reference Shunt - Fixed, 2.5V reference, ± 20ppm/°C, SOT-23-3

2511246

Voltage Reference Shunt - Fixed, 2.5V reference, ± 20ppm/°C, SOT-23-3

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Shunt - Fixed LM4040 2.5V 0.5% ± 20ppm/°C SOT-23 3Pins -40°C 85°C -
MAX6225AESA+T
MAX6225AESA+T - Voltage Reference, Series - Fixed, 2.5V, 0.02 %, ± 1.5ppm/°C, NSOIC-8

2799198

Voltage Reference, Series - Fixed, 2.5V, 0.02 %, ± 1.5ppm/°C, NSOIC-8

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Series - Fixed - 2.5V 0.02% ± 1.5ppm/°C NSOIC 8Pins -40°C 85°C -
LM4041BIM3-1.2+T
LM4041BIM3-1.2+T - Voltage Reference, Shunt - Fixed, 1.225V, 0.2% Ref, ± 15ppm/°C, SOT-23-3

2909935

Voltage Reference, Shunt - Fixed, 1.225V, 0.2% Ref, ± 15ppm/°C, SOT-23-3

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Shunt - Fixed - 1.225V 0.2% ± 15ppm/°C SOT-23 3Pins -40°C 85°C -
LM385D-2.5R2G
LM385D-2.5R2G - VOLT REF, SHUNT, 2.5V, 0 TO 70DEG C

3368545

VOLT REF, SHUNT, 2.5V, 0 TO 70DEG C

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Shunt - Fixed - 2.5V 3% ± 80ppm/°C NSOIC 8Pins 0°C 70°C -
AS431BZTR-E1
AS431BZTR-E1 - VOLT REF, SHUNT, 2.5V, -40 TO 125DEG C

3483053

VOLT REF, SHUNT, 2.5V, -40 TO 125DEG C

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Shunt - Adjustable - 2.5V to 36V 1% 20ppm/°C TO-92 3Pins -40°C 125°C -
MAX6161BESA+
MAX6161BESA+ - Voltage Reference, Series - Fixed, 1.25V, 4 mV, ± 6ppm/°C, NSOIC-8

2799194

Voltage Reference, Series - Fixed, 1.25V, 4 mV, ± 6ppm/°C, NSOIC-8

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Series - Fixed - 1.25V 4mV ± 6ppm/°C NSOIC 8Pins -40°C 85°C -
LM4041CFTA
LM4041CFTA - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4041 Series, 1.225V, SOT-23-3

1461554

Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4041 Series, 1.225V, SOT-23-3

DIODES INC.

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Shunt - Fixed LM4041 1.225V 0.5% ± 20ppm/°C SOT-23 3Pins -40°C 125°C AEC-Q100
LM4041CFTA
LM4041CFTA - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4041 Series, 1.225V, SOT-23-3

1461554RL

Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4041 Series, 1.225V, SOT-23-3

DIODES INC.

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Shunt - Fixed LM4041 1.225V 0.5% ± 20ppm/°C SOT-23 3Pins -40°C 125°C AEC-Q100
LM4040CIM3-2.5+T
LM4040CIM3-2.5+T - Voltage Reference Shunt - Fixed, 2.5V reference, ± 20ppm/°C, SOT-23-3

2511246RL

Voltage Reference Shunt - Fixed, 2.5V reference, ± 20ppm/°C, SOT-23-3

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Shunt - Fixed LM4040 2.5V 0.5% ± 20ppm/°C SOT-23 3Pins -40°C 85°C -
LM4050BEM3-4.1+T
LM4050BEM3-4.1+T - Voltage Reference Shunt - Fixed, 4.096V reference, ± 30ppm/°C, SOT-23-3

2511266RL

Voltage Reference Shunt - Fixed, 4.096V reference, ± 30ppm/°C, SOT-23-3

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Shunt - Fixed LM4050 4.096V 0.2% ± 30ppm/°C SOT-23 3Pins -40°C 125°C -
LM4050AEM3-2.1+T
LM4050AEM3-2.1+T - Voltage Reference Shunt - Fixed, 2.048V reference, ± 20ppm/°C, SOT-23-3

2511261RL

Voltage Reference Shunt - Fixed, 2.048V reference, ± 20ppm/°C, SOT-23-3

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Shunt - Fixed LM4050 2.048V 0.1% ± 20ppm/°C SOT-23 3Pins -40°C 125°C -
LM4050AEM3-2.1+T
LM4050AEM3-2.1+T - Voltage Reference Shunt - Fixed, 2.048V reference, ± 20ppm/°C, SOT-23-3

2511261

Voltage Reference Shunt - Fixed, 2.048V reference, ± 20ppm/°C, SOT-23-3

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Shunt - Fixed LM4050 2.048V 0.1% ± 20ppm/°C SOT-23 3Pins -40°C 125°C -
LM4050BEM3-4.1+T
LM4050BEM3-4.1+T - Voltage Reference Shunt - Fixed, 4.096V reference, ± 30ppm/°C, SOT-23-3

2511266

Voltage Reference Shunt - Fixed, 4.096V reference, ± 30ppm/°C, SOT-23-3

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Shunt - Fixed LM4050 4.096V 0.2% ± 30ppm/°C SOT-23 3Pins -40°C 125°C -
MAX6225AESA+T
MAX6225AESA+T - Voltage Reference, Series - Fixed, 2.5V, 0.02 %, ± 1.5ppm/°C, NSOIC-8

2799198RL

Voltage Reference, Series - Fixed, 2.5V, 0.02 %, ± 1.5ppm/°C, NSOIC-8

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Series - Fixed - 2.5V 0.02% ± 1.5ppm/°C NSOIC 8Pins -40°C 85°C -
LM4041BIM3-1.2+T
LM4041BIM3-1.2+T - Voltage Reference, Shunt - Fixed, 1.225V, 0.2% Ref, ± 15ppm/°C, SOT-23-3

2909935RL

Voltage Reference, Shunt - Fixed, 1.225V, 0.2% Ref, ± 15ppm/°C, SOT-23-3

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Shunt - Fixed - 1.225V 0.2% ± 15ppm/°C SOT-23 3Pins -40°C 85°C -
LM385D-2.5R2G
LM385D-2.5R2G - VOLT REF, SHUNT, 2.5V, 0 TO 70DEG C

3368545RL

VOLT REF, SHUNT, 2.5V, 0 TO 70DEG C

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Shunt - Fixed - 2.5V 3% ± 80ppm/°C NSOIC 8Pins 0°C 70°C -
MAX6126A25+T
MAX6126A25+T - Voltage Reference, Series - Fixed, 2.5 V, ± 2 ppm/°C, -40 °C to 125 °C, µMax-8

2987379RL

Voltage Reference, Series - Fixed, 2.5 V, ± 2 ppm/°C, -40 °C to 125 °C, µMax-8

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Series - Fixed MAX6126 Series 2.5V 0.06% ± 2ppm/°C µMax 8Pins -40°C 125°C -
LM4040BIM3-2.0/NOPB
LM4040BIM3-2.0/NOPB - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 2.048V, SOT-23-3

3009193RL

Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 2.048V, SOT-23-3

TEXAS INSTRUMENTS

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Shunt - Fixed LM4040 2.048V 0.2% ± 20ppm/°C SOT-23 3Pins -40°C 85°C AEC-Q100
MAX6126A25+T
MAX6126A25+T - Voltage Reference, Series - Fixed, 2.5 V, ± 2 ppm/°C, -40 °C to 125 °C, µMax-8

2987379

Voltage Reference, Series - Fixed, 2.5 V, ± 2 ppm/°C, -40 °C to 125 °C, µMax-8

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Series - Fixed MAX6126 Series 2.5V 0.06% ± 2ppm/°C µMax 8Pins -40°C 125°C -
LM4040BIM3-2.0/NOPB
LM4040BIM3-2.0/NOPB - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 2.048V, SOT-23-3

3009193

Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 2.048V, SOT-23-3

TEXAS INSTRUMENTS

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Shunt - Fixed LM4040 2.048V 0.2% ± 20ppm/°C SOT-23 3Pins -40°C 85°C AEC-Q100
LM4132BMF-4.1/NOPB
LM4132BMF-4.1/NOPB - VOLTAGE REF, SERIES, 4.096V, SOT-23-5

3124480

VOLTAGE REF, SERIES, 4.096V, SOT-23-5

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LM4132BMF-4.1/NOPB
LM4132BMF-4.1/NOPB - VOLTAGE REF, SERIES, 4.096V, SOT-23-5

3124480RL

VOLTAGE REF, SERIES, 4.096V, SOT-23-5

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ZRC250F01TA
ZRC250F01TA - Voltage Reference, Precision, Shunt - Fixed, ZRC250 Series, 2.5V, SOT-23-3

1132706

Voltage Reference, Precision, Shunt - Fixed, ZRC250 Series, 2.5V, SOT-23-3

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TL431ASA-7
TL431ASA-7 - Voltage Reference, Precision, Shunt - Adjustable, TL431 Series, 2.495V to 36V, SOT-23-3

1904055

Voltage Reference, Precision, Shunt - Adjustable, TL431 Series, 2.495V to 36V, SOT-23-3

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Shunt - Adjustable TL431 2.495V to 36V 1% - SOT-23 3Pins -40°C 125°C -
MCP1525-I/TO
MCP1525-I/TO - Voltage Reference, Precision, Series - Fixed, MCP1525 Series, 2.5V, TO-226AA-3

1292235

Voltage Reference, Precision, Series - Fixed, MCP1525 Series, 2.5V, TO-226AA-3

MICROCHIP

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Series - Fixed MCP1525 2.5V 1% ± 27ppm/°C TO-92 3Pins -40°C 85°C -