REF192 datasheet(3/28 Pages) AD

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REF19x Series

Rev. I | Page 3 of 28

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS—REF191 @ TA = 25°C

@ VS = 3.3 V, TA = 25°C, unless otherwise noted.

Table 2.

Parameter

Mnemonic

Condition

Min

Typ

Max

Unit

INITIAL ACCURACY1

E Grade

IOUT = 0 mA

2.046

2.048

2.050

F Grade

2.043

2.053

G Grade

2.038

2.058

LINE REGULATION2

E Grade

ΔVO/ΔVIN

3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA

ppm/V

F and G Grades

ppm/V

LOAD REGULATION2

E Grade

ΔVO/ΔVLOAD

VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA

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 = 30 mA

1.55

LONG-TERM STABILITY3

DVO

1000 hours @ 125°C

1.2

NOISE VOLTAGE

0.1 Hz to 10 Hz

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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