REF191GRU Ver la hoja de datos (PDF) - Analog Devices

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REF191GRU

0.3-18V; precision micropower, low dropout, voltage reference. For portable instrumentation, A-to-D and D-to-A converters, smart sensors

Analog Devices 

REF19x Series

REF194–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS (@ VS = 5.0 V, –40؇C ≤ TA ≤ +125؇C unless otherwise noted)

Parameter

Symbol

Condition

Min Typ

TEMPERATURE COEFFICIENT1, 2

“E” Grade

TCVO/°C

IOUT = 0 mA

2

“F” Grade

5

“G” Grade3

10

LINE REGULATION4

“E” Grade

“F & G” Grades

LOAD REGULATION4

“E” Grade

“F & G” Grades

∆VO /∆VIN

4.75 V ≤ VS ≤ 15 V, IOUT = 0 mA

5

10

∆VO /∆VLOAD VS = 5.80 V, 0 ≤ IOUT ≤ 20 mA

5

10

DROPOUT VOLTAGE

VS – VO

VS = 5.10 V, ILOAD = 10 mA

VS = 5.95 V, ILOAD = 20 mA

NOTES

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

2TCVO is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/ °C.

TCVO = (V max–V min)/VO (TMAX–TMIN).

3Guaranteed by characterization.

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

Specifications subject to change without notice.

Max

0.60

1.45

Units

ppm/°C

ppm/°C

ppm/°C

ppm/V

ppm/V

ppm/mA

ppm/mA

V

V

–8–

REV. D

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