REF3125 datasheet(3/13 Pages) BURR-BROWN

Part #	REF3125

Description	15ppm/C Max, 100UA, SOT23-3 SERIES VOLTAGE REFERENCE

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Manufacturer	BURR-BROWN [Burr-Brown (TI)]

Direct Link	http://www.burr-brown.com

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3 / 13 page

REF3112, 3120, 3125, 3130, 3133, 3140

3

SBVS046C

www.ti.com

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, ILOAD = 0mA, VIN = +5V, unless otherwise noted.

REF31xx

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

REF3130 – 3.0V

OUTPUT VOLTAGE

V

OUT

2.9940

3.0

3.0060

V

Initial Accuracy

–0.2

0.2

%

NOISE

Output Voltage Noise

f = 0.1Hz to 10Hz

39

µV

PP

Voltage Noise

f = 10Hz to 10kHz

57

µVrms

REF3133 – 3.3V

OUTPUT VOLTAGE

V

OUT

3.2934

3.30

3.3066

V

Initial Accuracy

–0.2

0.2

%

NOISE

Output Voltage Noise

f = 0.1Hz to 10Hz

43

µV

PP

Voltage Noise

f = 10Hz to 10kHz

63

µVrms

REF3140 – 4.096V

OUTPUT VOLTAGE

V

OUT

4.0878

4.096

4.1042

V

Initial Accuracy

–0.2

0.2

%

NOISE

Output Voltage Noise

f = 0.1Hz to 10Hz

53

µV

PP

Voltage Noise

f = 10Hz to 10kHz

78

µVrms

REF3112, REF3120, REF3125, REF3130, REF3133, REF3140

OUTPUT VOLTAGE TEMP DRIFT(2)

dV

OUT/dT

0

°C ≤ T

A ≤ +70°C

5

15

ppm/

°C

–40

°C ≤ T

A ≤ +125°C

10

20

ppm/

°C

LONG-TERM STABILITY

0-1000h

70

ppm

LINE REGULATION

VREF + 0.05(1) ≤ VIN ≤ 5.5V

20

65

ppm/V

LOAD REGULATION(3)

dVOUT/dILOAD

Sourcing

0mA < I

LOAD < 10mA,

10

30

µV/mA

VIN = VREF + 250mV(1)

Sinking

–10mA < I

LOAD < 0mA,

20

50

µV/mA

VIN = VREF + 100mV(1)

THERMAL HYSTERESIS(4)

dT

First Cycle

100

ppm

Additional Cycles

25

ppm

DROPOUT VOLTAGE(1)

VIN – VOUT

550

mV

OUTPUT CURRENT

ILOAD

–10

10

mA

SHORT-CIRCUIT CURRENT

I

SC

Sourcing

50

mA

Sinking

40

mA

TURN-ON SETTLING TIME

to 0.1% at VIN = +5V with CL = 0

400

µs

POWER SUPPLY

IL = 0

Voltage

V

S

VREF + 0.05(1)

5.5

V

Quiescent Current

I

Q

100

115

µA

Over Temperature

115

135

µA

TEMPERATURE RANGE

Specified Range

–40

+125

°C

Operating Range

–55

+135

°C

Storage Range

–65

+150

°C

Thermal Resistance

SOT23-3 Surface-Mount

θ

JA

336

°C/W

NOTES: (1) Minimum supply voltage for REF3112 is 1.8V.

(2) Box Method used to determine temperature drift.

(3) Typical value of load regulation reflects measurements using force and sense contacts; see the

Load Regulation section.

(4) Thermal hysteresis is explained in more detail in the

Applications Information section of this data sheet.

(5) For IL > 0, see the Typical Characteristic curves.

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