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REF191 Fiches technique(PDF) 2 Page - Analog Devices

No de pièce REF191
Description  Precision Micropower, Low Dropout Voltage References
Download  24 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

REF191 Fiches technique(HTML) 2 Page - Analog Devices

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REV. E
–2–
REF191–SPECIFICATIONS
REF19x Series
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Condition
Min
Typ
Max
Unit
INITIAL ACCURACY
1
E Grade
VO
IOUT = 0 mA
2.046
2.048
2.050
V
F Grade
2.043
2.053
V
G Grade
2.038
2.058
V
LINE REGULATION
2
E Grade
VO / VIN
3.0 V
≤ VS ≤ 15 V, IOUT = 0 mA
2
4
ppm/V
F and G Grades
48
ppm/V
LOAD REGULATION
2
E Grade
VO / VLOAD
VS = 5.0 V, 0 mA
≤ I
OUT
≤ 30 mA
4
10
ppm/mA
F and G Grades
615
ppm/mA
DROPOUT VOLTAGE
VS – VO
VS = 3.15 V, ILOAD = 2 mA
0.95
V
VS = 3.3 V, ILOAD = 10 mA
1.25
V
VS = 3.6 V, ILOAD = 30 mA
1.55
V
LONG-TERM STABILITY
3
DVO
1000 Hours @ 125
°C
1.2
mV
NOISE VOLTAGE
eN
0.1 Hz to 10 Hz
20
µV p-p
NOTES
1Initial accuracy includes temperature hysteresis effect.
2Line and load regulation specifications include the effect of self-heating.
3Long-term drift is guaranteed by 1000 hours life test performed on three independent wafer lots at 125
°C, with an LTPD of 1.3.
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Condition
Min
Typ
Max
Unit
TEMPERATURE COEFFICIENT
1, 2
E” Grade
TCVO/
°CIOUT = 0 mA
2
5
ppm/
°C
F Grade
510
ppm/
°C
G Grade
3
10
25
ppm/
°C
LINE REGULATION
4
E Grade
VO / VIN
3.0 V
≤ V
S
≤ 15 V, I
OUT = 0 mA
5
10
ppm/V
F and G Grades
10
20
ppm/V
LOAD REGULATION
4
E Grade
VO / VLOAD
VS = 5.0 V, 0 mA
≤ I
OUT
≤ 25 C
5
15
ppm/mA
F and G Grades
10
20
ppm/mA
DROPOUT VOLTAGE
VS – VO
VS = 3.15 V, ILOAD = 2 mA
0.95
V
VS = 3.3 V, ILOAD = 10 mA
1.25
V
VS = 3.6 V, ILOAD = 25 mA
1.55
V
SLEEP PIN
Logic High Input Voltage
VH
2.4
V
Logic High Input Current
IH
–8
µA
Logic Low Input Voltage
VL
0.8
V
Logic Low Input Current
IL
–8
µA
SUPPLY CURRENT
No Load
45
µA
Sleep Mode
No Load
15
µA
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, TA = 25 C, unless otherwise noted.)
(@ VS = 3.3 V, –40 C
≤ TA ≤ +85 C, unless otherwise noted.)


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