REF3212, REF3220

REF3225, REF3230

REF3233, REF3240

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SBVS058C

– JUNE 2005 – REVISED AUGUST 2011

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the listed temperature range.

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

REF32xx

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

REF3212 (1.25V)

OUTPUT VOLTAGE, VOUT

1.2475

1.25

1.2525

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

17

µVPP

Voltage noise

f = 10Hz to 10kHz

24

µVRMS

REF3220 (2.048V)

OUTPUT VOLTAGE, VOUT

2.044

2.048

2.052

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

27

µVPP

Voltage noise

f = 10Hz to 10kHz

39

µVRMS

REF3225 (2.5V)

OUTPUT VOLTAGE, VOUT

2.495

2.50

2.505

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

33

µVPP

Voltage noise

f = 10Hz to 10kHz

48

µVRMS

REF3230 (3V)

OUTPUT VOLTAGE, VOUT

2.994

3

3.006

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

39

µVPP

Voltage noise

f = 10Hz to 10kHz

57

µVRMS

REF3233 (3.3V)

OUTPUT VOLTAGE, VOUT

3.293

3.3

3.307

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

43

µVPP

Voltage noise

f = 10Hz to 10kHz

63

µVRMS

REF3240 (4.096V)

OUTPUT VOLTAGE, VOUT

4.088

4.096

4.104

V

Initial accuracy

–0.2

0.01

0.2

%

NOISE

Output voltage noise

f = 0.1Hz to 10Hz

53

µVPP

Voltage noise

f = 10Hz to 10kHz

78

µVRMS

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© 2005–2011, Texas Instruments Incorporated

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