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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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

NEXPERIA

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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
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 -
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

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Shunt - Adjustable TL431 2.495V to 36V 1% - SOT-23 3Pins -40°C 125°C AEC-Q100
LM385Z-1.2G
LM385Z-1.2G - Voltage Reference, Micropower, Shunt - Fixed, LM385 Series, 1.235V, TO-226AA-3

71J5025

Voltage Reference, Micropower, Shunt - Fixed, LM385 Series, 1.235V, TO-226AA-3

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Shunt - Fixed LM385 Series 1.235V 2% ± 80ppm/°C TO-226AA 3Pins 0°C 70°C -
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

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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 - 3.3V 1% ± 15ppm/°C SOT-23 3Pins -40°C 85°C -
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

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Shunt - Fixed LM4040 5V 1% ± 30ppm/°C SOT-23 3Pins -40°C 125°C AEC-Q100
TS3431CILT
TS3431CILT - VOLT REF, SHUNT, 1.24-24V, 125DEG C

54M1332

VOLT REF, SHUNT, 1.24-24V, 125DEG C

STMICROELECTRONICS

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Shunt - Adjustable TS3431 Series 1.24V to 24V 0.25% ± 100ppm/°C SOT-23 3Pins -40°C 125°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

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Shunt - Adjustable TL431 2.495V to 36V 2% - SOT-23 3Pins -40°C 85°C AEC-Q100
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

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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, 5V reference, ± 20ppm/°C, SOT-23-3

73Y5128

Voltage Reference Series - Fixed, 5V reference, ± 20ppm/°C, SOT-23-3

ANALOG DEVICES

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

42Y0817

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

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Series - Fixed - 3.3V 1% ± 18ppm/°C SOT-23 3Pins 0°C 100°C -
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 1% - TO-92 3Pins 0°C 70°C -
TL431ACDT
TL431ACDT - VOLT REF, SHUNT, 2.495-36V, 0 TO 70DEG C

75Y9891

VOLT REF, SHUNT, 2.495-36V, 0 TO 70DEG C

STMICROELECTRONICS

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Shunt - Adjustable TL431 Series 2.495V to 36V 1% - SOIC 8Pins 0°C 70°C -
ISL21010CFH315Z-T7A
ISL21010CFH315Z-T7A - VOLTAGE REF, SERIES, 1.5V, SOT-23-3

82Y6686

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

RENESAS

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

94AC1717

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

ANALOG DEVICES

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Series - Fixed - 2.5V 0.06% ± 2ppm/°C µMax 8Pins -40°C 125°C -
TL431CLPR
TL431CLPR - VOLT REF, SHUNT-ADJ, 2.495V-36V, TO-92

33AH5115

VOLT REF, SHUNT-ADJ, 2.495V-36V, TO-92

TEXAS INSTRUMENTS

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Shunt - Adjustable - 2.495V to 36V 2% 92ppm/°C TO-92 3Pins 0°C 70°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 -
ZR431FTA
ZR431FTA - VOLT REF, SHUNT, 2.5V, -40 TO 85DEG C ROHS COMPLIANT: YES

76AH6130

VOLT REF, SHUNT, 2.5V, -40 TO 85DEG C ROHS COMPLIANT: YES

DIODES INC.

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Shunt - Adjustable - 2.5V to 20V 2% 55ppm/°C SOT-23 3Pins -40°C 85°C -
TLE2426CLP
TLE2426CLP - VOLT REF, VIRTUAL GRND, 2V-20V, TO-92-3

29AH7861

VOLT REF, VIRTUAL GRND, 2V-20V, TO-92-3

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Virtual Ground Precision TLE2426 2V to 20V - ± 35ppm/°C TO-92 3Pins 0°C 70°C -
TS2431AILT
TS2431AILT - Voltage Reference, Shunt - Adjustable, TS2431 Series, 2.5V to 24V, SOT-23-3

33R1413

Voltage Reference, Shunt - Adjustable, TS2431 Series, 2.5V to 24V, SOT-23-3

STMICROELECTRONICS

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Shunt - Adjustable TS2431 Series 2.5V to 24V 1% ± 50ppm/°C SOT-23 3Pins -40°C 105°C -