REF3425 datasheet(5/26 Pages) TI1

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REF3425, REF3430, REF3433

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SBAS804A – SEPTEMBER 2017 – REVISED DECEMBER 2017

Product Folder Links: REF3425 REF3430 REF3433

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(1)

Temperature drift is specified according to the box method. See Feature Description for more details.

(2)

The ppm/V and ppm/mA in line and load regulation can be also expressed as µV/V and µV/mA.

(3)

The dropout voltage in line regulation test condition is 50 mV.

(4)

The dropout voltage in test condition is 500 mV.

(5)

The peak-to-peak noise measurement procedure is explained in more detail in Noise Performance.

(6)

Long-term stability measurement procedure is explained in more in detail in Long-Term Stability.

(7)

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

7.5 Electrical Characteristics

At TA = 25°C unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ACCURACY AND DRIFT

Output voltage

accuracy

–40°C

≤ TA ≤ 125°C

–0.0

0.05%

Output voltage

temperature

coefficient(1)

2.5

ppm/°C

LINE AND LOAD REGULATION

ΔV(OΔVIN)

Line regulation(2)

VIN = 2.55 V to 12 V , TA = 25°C

ppm/V

VIN = VREF + VDO

(3) to 12 V, −40°C ≤ T

A ≤ 125°C

ΔV(OΔIL)

Load regulation(2)

IL = 0 mA to 10 mA, VIN = 3

V, TA = 25°C

Sourcing

ppm/mA

IL = 0 mA to 10 mA, VIN = 3

−40°C ≤ TA ≤ 125°C

Sourcing

IL = 0 mA to –10 mA, VIN =

VREF+ VDO

(4), T

A = 25°C

Sinking

REF3425

REF3430

REF3433

IL = 0 mA to –10 mA, VIN =

VREF+ VDO

(4), −40°C ≤ T

≤ 125°C

Sinking

REF3425

REF3430

REF3433

ISC

Short-circuit

current (Output

shorted to

ground)

VREF = 0, TA = 25°C

NOISE

en p-p

Output voltage

noise(5)

ƒ = 0.1 Hz to 10 Hz

μV p-p/V

ƒ = 10 Hz to 10 kHz

μV rms

Output voltage

noise density

ƒ = 1 kHz

0.25

ppm/

√Hz

HYSTERESIS AND LONG TERM STABILITY

Long-term

stability(6)

1000 hours

ppm

Output voltage

hysteresis(7)

TA = 25°C to −40°C to 125°C to 25°C, Cycle 1

ppm

TA = 25°C to −40°C to 125°C to 25°C, Cycle 2

TURNON

tON

Turnon time

0.1% of output voltage settling, CL = 10 µF, REF34xx

2.5

CAPACITIVE LOAD

Stable output

capacitor value

−40°C ≤ TA ≤ 125°C

0.1

µF

OUTPUT VOLTAGE

VREF

Output voltage

REF3425

2.5

REF3430

REF3433

3.3

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