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REF191 Fiches technique(PDF) 3 Page - Analog Devices

No de pièce REF191
Description  Precision Micropower, Low Dropout Voltage References
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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REF191 Fiches technique(HTML) 3 Page - Analog Devices

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REV. E
REF19x Series
–3–
REF191–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
3.0 V
≤ V
S
≤ 15 V, I
OUT = 0 mA
10
ppm/V
F and G Grades
20
ppm/V
LOAD REGULATION
4
E Grade
VO / VLOAD
VS = 5.0 V, 0 mA
≤ IOUT ≤ 20 mA
10
ppm/mA
F and G Grades
20
ppm/mA
DROPOUT VOLTAGE
VS – VO
VS = 3.3 V, ILOAD = 10 mA
1.25
V
VS = 3.6 V, ILOAD = 20 mA
1.55
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.
(@ VS = 3.3 V, –40 C
≤ TA ≤ +125 C, unless otherwise noted.)


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