REF3325AIDCKTG4 datasheet(6/37 Pages) TI1

Part #	REF3325AIDCKTG4

Description	3.9-關A, SC70-3, SOT-23-3, and UQFN-8, 30-ppm/C Drift Voltage Reference

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Manufacturer	TI1 [Texas Instruments]

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REF3312, REF3318, REF3320, REF3325, REF3330, REF3333

SBOS392G – AUGUST 2007 – REVISED DECEMBER 2016

www.ti.com

Product Folder Links: REF3312 REF3318 REF3320 REF3325 REF3330 REF3333

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(1)

The minimum supply voltage for the REF3312 is 1.7 V.

(2)

The long-term stability number reduces as the time increases.

(3)

The thermal hysteresis procedure is explained in more detail in the Thermal Hysteresis section.

7.5 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REF3312 (1.25 V)

VOUT

Output voltage

1.25

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

35

μVPP

REF3318 (1.8 V)

VOUT

Output voltage

1.8

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

50

μVPP

REF3320 (2.048 V)

VOUT

Output voltage

2.048

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

55

μVPP

REF3325 (2.5 V)

VOUT

Output voltage

2.5

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

70

μVPP

REF3330 (3.0 V)

VOUT

Output voltage

3.0

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

84

μVPP

REF3333 (3.3 V)

VOUT

Output voltage

3.3

V

Initial accuracy

–0.15%

0.15%

Output voltage noise

f = 0.1 Hz to 10 Hz

92

μVPP

REF33xx (REF3312, REF3318, REF3320, REF3325, REF3330, REF3333)

dVOUT/dT

Output voltage temperature drift

–40°C to 85°C

9

30

ppm/°C

–40°C to 125°C

8

30

ΔVO(ΔVI)

Line regulation

VIN = VOUT + 200 mV to 5.5 V

(1)

–50

6

50

ppm/V

0°C to +70°C

6

–40°C to 85°C

8

–40°C to 125°C

30

ΔVO(ΔIL)

Load regulation

VIN = VOUT + 200 mV

(1)

–50

6

50

ppm/mA

ILOAD = ±5 mA, 0°C to 70°C

10

–40°C to 85°C

20

–40°C to 125°C

20

Long-term stability(2)

0h to 1000h at 25°C

55

ppm

dT

Thermal hysteresis(3)

90

ppm

VIN – VOUT

Minimum dropout voltage(1)

ILOAD = ±5 mA

110

160

mV

0°C to 70°C

120

–40°C to 85°C

135

–40°C to 125°C

180

ILOAD = ±2 mA, –40°C to 85°C

70

ISC

Short-circuit current

Sourcing and sinking

35

mA

Capacitive load

0.1

10

μF

Turn-on settling time

To 0.1% with CL = 1 μF

2

ms

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