REF3230AMDBVREP datasheet(4/22 Pages) TI1

Part #	REF3230AMDBVREP

Description	SOT23-6 SERIES VOLTAGE REFERENCES

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Manufacturer	TI1 [Texas Instruments]

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REF3212-EP, REF3220-EP, REF3225-EP

REF3230-EP, REF3233-EP, REF3240-EP

SBVS078B

– OCTOBER 2006 – REVISED AUGUST 2011

www.ti.com

Electrical Characteristics

Boldface limits apply over the listed temperature range.

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REF3212 (1.25 V)

Output voltage

1.2475

1.25

1.2525

V

VOUT

Initial accuracy

–0.2

0.01

0.2

%

Output voltage noise

f = 0.1 Hz to 10 Hz

17

μVPP

Noise

Voltage noise

f = 10 Hz to 10 kHz

24

μVRMS

REF3220 (2.048 V)

Output

2.044

2.048

2.052

V

voltage

VOUT

Initial

–0.2

0.01

0.2

%

accuracy

Output

f = 0.1 Hz to 10 Hz

27

μVPP

voltage noise

Noise

Voltage noise f = 10 Hz to 10 kHz

39

μVRMS

REF3225 (2.5 V)

Output voltage

2.495

2.5

2.505

V

VOUT

Initial accuracy

–0.2

0.01

0.2

%

Output voltage noise

f = 0.1 Hz to 10 Hz

33

μVPP

Noise

Voltage noise

f = 10 Hz to 10 kHz

48

μVRMS

REF3230 (3 V)

Output voltage

2.994

3

3.006

V

VOUT

Initial accuracy

–0.2

0.01

0.2

%

Output voltage noise

f = 0.1 Hz to 10 Hz

39

μVPP

Noise

Voltage noise

f = 10 Hz to 10 kHz

57

μVRMS

REF3233 (3.3 V)

Output voltage

3.293

3.3

3.307

V

VOUT

Initial accuracy

–0.2

0.01

0.2

%

Output voltage noise

f = 0.1 Hz to 10 Hz

43

μVPP

Noise

Voltage noise

f = 10 Hz to 10 kHz

63

μVRMS

REF3240 (4.096 V)

Output voltage

4.088

4.096

4.104

V

VOUT

Initial accuracy

–0.2

0.01

0.2

%

Output voltage noise

f = 0.1 Hz to 10 Hz

53

μVPP

Noise

Voltage noise

f = 10 Hz to 10 kHz

78

μVRMS

REF3212/REF3220/REF3225/REF3230/REF3233/REF3240

TA = 25°C

4

7

dVOUT/dT Output voltage temperature drift

ppm/

°C

–55°C ≤ TA ≤ 125°C

10.5

40

Long-term stability

0 tp 1000 h

55

ppm

Line regulation

VOUT + 0.05

(1) ≤ V

IN ≤ 5.5 V

–65

15

65

ppm/V

Sourcing

0 mA

< ILOAD < 10 mA, VIN = VOUT + 250 mV

(1)

–40

3

40

dVOUT/

Load

μV/mA

dILOAD

regulation(2)

Sinking

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

(1)

–60

20

60

First cycle

100

Thermal

dT

ppm

Additional

hysteresis(3)

25

cycles

VIN –

Dropout voltage(1)

25

°C ≤ TA ≤ +125°C

5

50

mV

VOUT

(1)

The minimum supply voltage for the REF3212 is 1.8 V.

(2)

Load regulation is using force and sense lines; see the Load Regulation section for more information.

(3)

Thermal hysteresis procedure is explained in more detail in the Applications Information section.

4

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Product Folder Link(s): REF3212-EP, REF3220-EP, REF3225-EP REF3230-EP, REF3233-EP, REF3240-EP

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