REF191 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
REF191 Datasheet PDF : 28 Pages
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REF19x Series
ELECTRICAL CHARACTERISTICS—REF195 @ TA = 25°C
@ VS = 5.10 V, TA = 25°C, unless otherwise noted.
Table 14.
Parameter
Mnemonic
Condition
INITIAL ACCURACY1
E Grade
VO
IOUT = 0 mA
F Grade
G Grade
LINE REGULATION2
E Grade
ΔVO/ΔVIN
5.10 V ≤ VS ≤ 15 V, IOUT = 0 mA
F and G Grades
LOAD REGULATION2
E Grade
ΔVO/ΔVLOAD
VS = 6.30 V, 0 mA ≤ IOUT ≤ 30 mA
F and G Grades
DROPOUT VOLTAGE
VS − VO
VS = 5.50 V, ILOAD = 10 mA
VS = 6.30 V, ILOAD = 30 mA
LONG-TERM STABILITY3
DVO
1000 hours @ 125°C
NOISE VOLTAGE
eN
0.1 Hz to 10 Hz
Min Typ Max Unit
4.998 5.0 5.002 V
4.995
5.005 V
4.990
5.010 V
2
4
4
8
ppm/V
ppm/V
2
4
4
8
0.50
1.30
1.2
50
ppm/mA
ppm/mA
V
V
mV
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.
ELECTRICAL CHARACTERISTICS—REF195 @ −40°C ≤ TA ≤ +85°C
@ VS = 5.15 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.
Table 15.
Parameter
Mnemonic
Condition
TEMPERATURE COEFFICIENT1,2
E Grade
TCVO/°C
IOUT = 0 mA
F Grade
G Grade3
LINE REGULATION4
E Grade
ΔVO/ΔVIN
5.15 V ≤ VS ≤ 15 V, IOUT = 0 mA
F and G Grades
LOAD REGULATION4
E Grade
ΔVO/ΔVLOAD
VS = 6.30 V, 0 mA ≤ IOUT ≤ 25 mA
F and G Grades
DROPOUT VOLTAGE
VS − VO
VS = 5.50 V, ILOAD = 10 mA
VS = 6.30 V, ILOAD = 25 mA
SLEEP PIN
Logic High Input Voltage
VH
Logic High Input Current
IH
Logic Low Input Voltage
VL
Logic Low Input Current
IL
SUPPLY CURRENT
No load
Sleep Mode
No load
Min Typ
2
5
10
5
10
5
10
2.4
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.
Max
5
10
25
10
20
10
20
0.50
1.30
−8
0.8
−8
45
15
Unit
ppm/°C
ppm/°C
ppm/°C
ppm/V
ppm/V
ppm/mA
ppm/mA
V
V
V
μA
V
μA
μA
μA
Rev. I | Page 10 of 28
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