REF194 datasheet(10/24 Pages) AD

Part #	REF194

Description	Precision Micropower, Low Dropout Voltage References

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REV. E

–10–

REF19x Series

REF195–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Unit

TEMPERATURE COEFFICIENT

1, 2

E Grade

TCVO/

°CI

OUT = 0 mA

2

ppm/

°C

F Grade

5

ppm/

°C

G Grade

3

10

ppm/

°C

LINE REGULATION

4

E Grade

VO / VIN

5.20 V

≤ V

S

≤ 15 V, I

OUT = 0 mA

5

ppm/V

F and G Grades

10

ppm/V

LOAD REGULATION

4

E Grade

VO / VLOAD

VS = 6.45 V, 0 mA

≤ IOUT ≤ 20 mA

5

ppm/mA

F and G Grades

10

ppm/mA

DROPOUT VOLTAGE

VS – VO

VS = 5.60 V, ILOAD = 10 mA

0.60

V

VS = 6.45 V, ILOAD = 20 mA

1.45

V

NOTES

1For proper operation, a 1

µF capacitor is required between the output pin and the GND pin of the device.

2TCV

O is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/

°C.

TCVO =(VMAX –VMIN)/ VO(TMAX –TMIN).

3Guaranteed by characterization.

4Line and load regulation specifications include the effect of self-heating.

Specifications subject to change without notice.

REF196–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Unit

INITIAL ACCURACY

1

G Grade

VO

IOUT = 0 mA

3.290

3.3

3.310

V

LINE REGULATION

2

G Grades

VO / VIN

3.50 V

≤ VS ≤ 15 V, IOUT = 0 mA

4

8

ppm/V

LOAD REGULATION

2

G Grade

VO / VLOAD

VS = 5.0 V, 0 mA

≤ I

OUT

≤ 30 mA

6

15

ppm/mA

DROPOUT VOLTAGE

VS – VO

VS = 4.1 V, ILOAD = 10 mA

0.80

V

VS = 4.3 V, ILOAD = 30 mA

1.00

V

LONG-TERM STABILITY

3

DVO

1000 Hours @ 125

°C

1.2

mV

NOISE VOLTAGE

eN

0.1 Hz to 10 Hz

33

µV p-p

NOTES

1Initial accuracy includes temperature hysteresis effect.

2Line and load regulation specifications include the effect of self-heating.

3Long-term drift is guaranteed by 1000 hours life test performed on three independent wafer lots at 125

°C, with an LTPD of 1.3.

Specifications subject to change without notice.

(@ VS = 5.20 V, –40 C

≤ TA ≤ +125 C, unless otherwise noted.)

(@ VS = 3.5 V, TA = 25 C, unless otherwise noted.)

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