REF192ES-REEL7 datasheet(8/28 Pages) AD

Part #	REF192ES-REEL7

Description	Precision Micropower, Low Dropout Voltage References

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REF19x Series

Rev. I | Page 8 of 28

ELECTRICAL CHARACTERISTICS—REF193 @ TA ≤ −40°C ≤ +125°C

@ VS = 3.3 V, –40°C ≤ TA ≤ +125°C, unless otherwise noted.

Table 10.

Parameter

Mnemonic

Condition

Min

Typ

Max

Unit

TEMPERATURE COEFFICIENT1 ,2

G Grade3

TCVO/°C

IOUT = 0 mA

10

ppm/°C

LINE REGULATION4

G Grade

ΔVO/ΔVIN

3.3 V ≤ VS ≤ 15 V, IOUT = 0 mA

20

ppm/V

LOAD REGULATION4

G Grade

ΔVO/ΔVLOAD

VS = 5.0 V, 0 mA ≤ IOUT ≤ 20 mA

10

ppm/mA

DROPOUT VOLTAGE

VS − VO

VS = 3.8 V, ILOAD = 10 mA

0.80

V

VS = 4.1 V, ILOAD = 20 mA

1.10

V

1 For proper operation, a 1 μF capacitor is required between the output pin and the GND pin of the device.

2 TCVO 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)

3 Guaranteed by characterization.

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

ELECTRICAL CHARACTERISTICS—REF194 @ TA = 25°C

@ VS = 5.0 V, TA = 25°C, unless otherwise noted.

Table 11.

Parameter

Mnemonic

Condition

Min

Typ

Max

Unit

INITIAL ACCURACY1

E Grade

VO

IOUT = 0 mA

4.498

4.5

4.502

V

F Grade

4.495

4.505

V

G Grade

4.490

4.510

V

LINE REGULATION2

E Grade

∆VO/∆VIN

4.75 V ≤ VS ≤ 15 V, IOUT = 0 mA

2

4

ppm/V

F and G Grades

4

8

ppm/V

LOAD REGULATION2

E Grade

∆VO/∆VLOAD

VS = 5.8 V, 0 mA ≤ IOUT ≤ 30 mA

2

4

ppm/mA

F and G Grades

4

8

ppm/mA

DROPOUT VOLTAGE

VS − VO

VS = 5.00 V, ILOAD = 10 mA

0.50

V

VS = 5.8 V, ILOAD = 30 mA

1.30

V

LONG-TERM STABILITY3

DVO

1000 hours @ 125°C

2

mV

NOISE VOLTAGE

eN

0.1 Hz to 10 Hz

45

μV p-p

1 Initial accuracy includes temperature hysteresis effect.

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

3 Long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.

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