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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TLV431AFTA
TLV431AFTA - Voltage Reference, Shunt - Adjustable, AEC-Q100 TLV431 Series, 1.24V to 18V, SOT-23-3 RoHS Compliant: Yes

55T7345

Voltage Reference, Shunt - Adjustable, AEC-Q100 TLV431 Series, 1.24V to 18V, SOT-23-3 RoHS Compliant: Yes

DIODES INC.

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Shunt - Adjustable TLV431 1.24V to 18V 1% - SOT-23 3Pins -40°C 125°C AEC-Q100
MCP1525T-I/TT
MCP1525T-I/TT - Voltage Reference, Precision, Series - Fixed, MCP1525 Series, 2.5V, SOT-23-3

89C7118

Voltage Reference, Precision, Series - Fixed, MCP1525 Series, 2.5V, SOT-23-3

MICROCHIP

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Series - Fixed MCP1525 Series 2.5V 1% ± 27ppm/°C SOT-23 3Pins -40°C 85°C -
TL431FDT,215
TL431FDT,215 - Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

91T5114

Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

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Shunt - Adjustable TL431 2.495V to 36V 2% - SOT-23 3Pins -40°C 125°C AEC-Q100
LM4041DFTA
LM4041DFTA - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4041 Series, 1.225V, SOT-23-3 RoHS Compliant: Yes

58M8022

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

DIODES INC.

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Shunt - Fixed LM4041 1.225V 1% ± 20ppm/°C SOT-23 3Pins -40°C 125°C AEC-Q100
TL431AQDBZR,215
TL431AQDBZR,215 - Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

91T5106

Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

NEXPERIA

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Shunt - Adjustable TL431 2.495V to 36V 1% - SOT-23 3Pins -40°C 125°C AEC-Q100
TL431AFDT,215
TL431AFDT,215 - Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

91T5101

Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

NEXPERIA

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Shunt - Adjustable TL431 2.495V to 36V 1% - SOT-23 3Pins -40°C 125°C AEC-Q100
ZRC330F01TA
ZRC330F01TA - VOLT REF, SHUNT, 3.3V, -40 TO 85DEG C

98K4035

VOLT REF, SHUNT, 3.3V, -40 TO 85DEG C

DIODES INC.

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Shunt - Fixed -888 3.3V 1 ± 15ppm/°C SOT-23 3 -40 85 -888
LM4040D50FTA
LM4040D50FTA - Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 5V, SOT-23-3 RoHS Compliant: Yes

58M8020

Voltage Reference, Precision Micropower, Shunt - Fixed, AEC-Q100 LM4040 Series, 5V, SOT-23-3 RoHS Compliant: Yes

DIODES INC.

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Shunt - Fixed LM4040 5V 1% ± 30ppm/°C SOT-23 3Pins -40°C 125°C AEC-Q100
TS4040DILT-2.5
TS4040DILT-2.5 - Voltage Reference, Shunt - Fixed, 2.5V, 1%, -40 to 85°C, SOT-23-3

26R3041

Voltage Reference, Shunt - Fixed, 2.5V, 1%, -40 to 85°C, SOT-23-3

STMICROELECTRONICS

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Shunt - Fixed TS4040 2.5V 1% ± 30ppm/°C SOT-23 3Pins -40°C 85°C -
TL431IDBZR,215
TL431IDBZR,215 - Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

91T5100

Voltage Reference, Precision, Shunt - Adjustable, AEC-Q100 TL431 Series, 2.495V to 36V, SOT-23-3 RoHS Compliant: Yes

NEXPERIA

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Shunt - Adjustable TL431 2.495V to 36V 2% - SOT-23 3Pins -40°C 85°C AEC-Q100
ISL21080DIH312Z-TK
ISL21080DIH312Z-TK - VOLTAGE REF, SERIES, 1.25V, SOT-23-3

08X4530

VOLTAGE REF, SERIES, 1.25V, SOT-23-3

RENESAS

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Series - Fixed - 1.25V 0.6% ± 50ppm/°C SOT-23 3Pins -40°C 85°C -
KA431SAMFTF
KA431SAMFTF - Voltage Reference, Shunt - Adjustable, KA431SA Series, 2.5V to 36V, SOT-23F-3 RoHS Compliant: Yes

31Y2114

Voltage Reference, Shunt - Adjustable, KA431SA Series, 2.5V to 36V, SOT-23F-3 RoHS Compliant: Yes

ONSEMI

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Shunt - Adjustable KA431SA 2.5V to 36V 1% ± 50ppm/°C SOT-23F 3Pins -25°C 85°C -
MAX6005EUR+T
MAX6005EUR+T - Voltage Reference, Series - Fixed, 5 V, 20 ppm/°C, -40 °C to 85 °C, SOT-23-3

73Y5128

Voltage Reference, Series - Fixed, 5 V, 20 ppm/°C, -40 °C to 85 °C, SOT-23-3

ANALOG DEVICES

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Series - Fixed MAX6005 Series 5V 1 ± 20ppm/°C SOT-23 3 -40 85 -888
NCP51460SN33T1G
NCP51460SN33T1G - VOLT REF, SHUNT - FIXED, 0 TO 100DEG C

42Y0817

VOLT REF, SHUNT - FIXED, 0 TO 100DEG C

ONSEMI

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Series - Fixed -888 3.3V 1 ± 18ppm/°C SOT-23 3 0 100 -888
TL431ACZ
TL431ACZ - Voltage Reference, Shunt - Adjustable, TL431 Series, 2.495V to 36V, TO-226AA-3 RoHS Compliant: Yes

72K7246

Voltage Reference, Shunt - Adjustable, TL431 Series, 2.495V to 36V, TO-226AA-3 RoHS Compliant: Yes

STMICROELECTRONICS

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Shunt - Adjustable TL431 2.495V to 36V 0 0 TO-92 0 0 0 0
ISL21080CIH325Z-TK
ISL21080CIH325Z-TK - VOLT REF, SERIES, 2.5V, -40 TO 85DEG C

08X4526

VOLT REF, SERIES, 2.5V, -40 TO 85DEG C

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Series - Fixed ISL21080 Series 2.5V 0.3% ± 50ppm/°C SOT-23 3 -40 85 -888
ISL21010CFH315Z-T7A
ISL21010CFH315Z-T7A - VOLTAGE REF, SERIES, 1.5V, SOT-23-3

82Y6686

VOLTAGE REF, SERIES, 1.5V, SOT-23-3

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Series - Fixed ISL21010 Series 1.5V 0.2% 15ppm/°C SOT-23 3 -40 125 -888
MAX6126A25+T
MAX6126A25+T - VOLT REF, SERIES - FIXED, 2.5V, 125DEG C

94AC1717

VOLT REF, SERIES - FIXED, 2.5V, 125DEG C

ANALOG DEVICES

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Series - Fixed MAX6126 Series 2.5V 0.06% ± 2ppm/°C µMax 8Pins -40°C 125°C -
ATL431AIDBZR
ATL431AIDBZR - VOLTAGE REF, SHUNT, 2.5-36V, 1%, SOT23-3

29AH3394

VOLTAGE REF, SHUNT, 2.5-36V, 1%, SOT23-3

TEXAS INSTRUMENTS

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Shunt - Adjustable TL431 2.495V to 36V 1% - SOT-23 3Pins -40°C 85°C -
LM4040DIZ-5.0/NOPB
LM4040DIZ-5.0/NOPB - VOLTAGE REF, SHUNT, 5V, TO-226AA-3

33AH4216

VOLTAGE REF, SHUNT, 5V, TO-226AA-3

TEXAS INSTRUMENTS

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Shunt - Fixed LM4040 5V 1% ± 30ppm/°C TO-226AA 3Pins -40°C 85°C -
MAX6175AASA+T
MAX6175AASA+T - VOLT REF, SERIES - FIXED, -40 TO 125DEGC ROHS COMPLIANT: YES

69AH0968

VOLT REF, SERIES - FIXED, -40 TO 125DEGC ROHS COMPLIANT: YES

ANALOG DEVICES

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Series - Fixed - 5V 0.06% ± 3ppm/°C NSOIC 8Pins -40°C 125°C -
LM4132BMF-2.5/NOPB
LM4132BMF-2.5/NOPB - VOLTAGE REF, AEC-Q100, 2.5V, 125DEG C

28AH3459

VOLTAGE REF, AEC-Q100, 2.5V, 125DEG C

TEXAS INSTRUMENTS

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Series - Fixed - 2.5V 0.1% 20ppm/°C SOT-23 5Pins -40°C 125°C AEC-Q100
AS431HANTR-G1
AS431HANTR-G1 - VOLT REF, SHUNT, 2.495-36V, 125DEG C ROHS COMPLIANT: YES

76AH4833

VOLT REF, SHUNT, 2.495-36V, 125DEG C ROHS COMPLIANT: YES

DIODES INC.

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Shunt - Adjustable - 2.495V to 36V 0.5% 20ppm/°C SOT-23 3Pins -40°C 125°C -
LM385Z-2.5/NOPB
LM385Z-2.5/NOPB - VOLTAGE REF, SHUNT, 2.5V, TO-226AA-3

33AH4193

VOLTAGE REF, SHUNT, 2.5V, TO-226AA-3

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Shunt - Fixed - 2.5V 0.8% 150ppm/°C TO-226AA 3Pins 0°C 70°C -
REF3325AIDCKT
REF3325AIDCKT - VOLTAGE REF, SERIES, 2.5V, SC-70-3

28AH4813

VOLTAGE REF, SERIES, 2.5V, SC-70-3

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Series - Fixed REF3325 2.5V 0.15% ± 8ppm/°C SC-70 3Pins -40°C 125°C -