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REF3112, REF3120, REF3125

REF3130, REF3133, REF3140

www.ti.com

SBVS046D – DECEMBER 2003 – REVISED MARCH 2016

Product Folder Links: REF3112 REF3120 REF3125 REF3130 REF3133 REF3140

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Copyright © 2003–2016, Texas Instruments Incorporated

Electrical Characteristics (continued)

at TA = 25°C, ILOAD = 0 mA, and VIN = 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(2)

Box Method used to determine temperature drift.

(3)

Typical value of load regulation reflects measurements using force and sense contacts; see Load Regulation.

(4)

Thermal hysteresis is explained in more detail in Application and Implementation of this data sheet.

REF3120 — 2.048 V

VOUT

Output voltage

2.0439

2.048

2.0521

V

Initial accuracy

–0.2%

0.2%

Output voltage noise

f = 0.1Hz to 10Hz

27

μVPP

f = 10Hz to 10kHz

39

μVRMS

REF3125 — 2.5 V

VOUT

Output voltage

2.495

2.5

2.505

V

Initial accuracy

–0.2%

0.2%

Output voltage noise

f = 0.1Hz to 10Hz

33

μVPP

f = 10Hz to 10kHz

48

μVRMS

REF3130 — 3 V

VOUT

Output voltage

2.994

3

3.006

V

Initial accuracy

–0.2%

0.2%

Output voltage noise

f = 0.1Hz to 10Hz

39

μVPP

f = 10Hz to 10kHz

57

μVRMS

REF3133 — 3.3 V

VOUT

Output voltage

3.2934

3.3

3.3066

V

Initial accuracy

–0.2%

0.2%

Output voltage noise

f = 0.1Hz to 10Hz

43

μVPP

f = 10Hz to 10kHz

63

μVRMS

REF3140 — 4.096 V

VOUT

Output voltage

4.0878

4.096

4.1042

V

Initial accuracy

–0.2%

0.2%

Output voltage noise

f = 0.1Hz to 10Hz

53

μVPP

f = 10Hz to 10kHz

78

μVRMS

REF31xx (REF3112, REF3120, REF3125, REF3130, REF3133, REF3140)

dVOUT/dT

Output voltage temperature drift(2)

TA = 0°C to 70°C.

5

15

ppm/°C

TA = –40°C to +125°C .

10

20

Long-term stability

0 to 1000 hours

70

ppm

Line regulation

VREF + 0.05

(1) ≤ V

IN ≤ 5.5V

20

65

ppm/V

dVOUT/dILOAD

Load regulation(3)

Sourcing

0mA < ILOAD < 10mA, VIN = VREF + 250mV

(1)

10

30

µV/mA

Sinking

–10mA < ILOAD < 0mA, VIN = VREF + 100mV

(1)

20

50

dT

Thermal

hysteresis(4)

First Cycle

100

ppm

Additional Cycles

25

VIN – VOUT

Dropout voltage(1)

TA = –40°C to +125°C.

5

50

mV

ILOAD

Output current

–10

10

mA

ISC

Short-circuit current

Sourcing

50

mA

Sinking

40

Turnon settling time

To 0.1% at VIN = +5V with CL = 0μF

400

µs

POWER SUPPLY

VS

Voltage

ILOAD = 0, TA = –40°C to +125°C.

VREF + 0.05

(1)

5.5

V

IQ

Quiescent current

ILOAD = 0, TA = 25°C

100

115

µA

ILOAD = 0, TA = –40°C to +125°C

115

135