REF19X datasheet(4/28 Pages) AD

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REF19x Series

Rev. I | Page 4 of 28

ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ TA ≤ +85°C

@ VS = 3.3 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.

Table 3.

Parameter

Mnemonic

Condition

Min

Typ

Max

Unit

TEMPERATURE COEFFICIENT1, 2

E Grade

TCVO/°C

IOUT = 0 mA

ppm/°C

F Grade

ppm/°C

G Grade3

ppm/°C

LINE REGULATION4

E Grade

ΔVO/ΔVIN

3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA

ppm/V

F and G Grades

ppm/V

LOAD REGULATION4

E Grade

ΔVO/ΔVLOAD

VS = 5.0 V, 0 mA ≤ IOUT ≤ 25°C

ppm/mA

F and G Grades

ppm/mA

DROPOUT VOLTAGE

VS − VO

VS = 3.15 V, ILOAD = 2 mA

0.95

VS = 3.3 V, ILOAD = 10 mA

1.25

VS = 3.6 V, ILOAD = 25 mA

1.55

SLEEP PIN

Logic High Input Voltage

2.4

Logic High Input Current

−8

μA

Logic Low Input Voltage

0.8

Logic Low Input Current

−8

μA

SUPPLY CURRENT

No load

μA

Sleep Mode

No load

μA

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.

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