REF191 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
REF191 Datasheet PDF : 28 Pages
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REF19x Series
ELECTRICAL CHARACTERISTICS—REF195 @ −40°C ≤ TA ≤ +125°C
@ VS = 5.20 V, −40°C ≤ TA ≤ +125°C, unless otherwise noted.
Table 16.
Parameter
Mnemonic
Condition
TEMPERATURE COEFFICIENT1, 2
E Grade
TCVO/°C
IOUT = 0 mA
F Grade
G Grade3
LINE REGULATION4
E Grade
ΔVO/ΔVIN
5.20 V ≤ VS ≤ 15 V, IOUT = 0 mA
F and G Grades
LOAD REGULATION4
E Grade
ΔVO/ΔVLOAD
VS = 6.45 V, 0 mA ≤ IOUT ≤ 20 mA
F and G Grades
DROPOUT VOLTAGE
VS − VO
VS = 5.60 V, ILOAD = 10 mA
VS = 6.45 V, ILOAD = 20 mA
Min Typ
2
5
10
5
10
5
10
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
0.60
1.45
Unit
ppm/°C
ppm/°C
ppm/°C
ppm/V
ppm/V
ppm/mA
ppm/mA
V
V
ELECTRICAL CHARACTERISTICS—REF196 @ TA = 25°C
@ VS = 3.5 V, TA = 25°C, unless otherwise noted.
Table 17.
Parameter
Mnemonic
Condition
INITIAL ACCURACY1
G Grade
LINE REGULATION2
VO
IOUT = 0 mA
G Grade
LOAD REGULATION2
ΔVO/ΔVIN
3.50 V ≤ VS ≤ 15 V, IOUT = 0 mA
G Grade
DROPOUT VOLTAGE
LONG-TERM STABILITY3
NOISE VOLTAGE
ΔVO/ΔVLOAD
VS − VO
DVO
eN
VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA
VS = 4.1 V, ILOAD = 10 mA
VS = 4.3 V, ILOAD = 30 mA
1000 hours @ 125°C
0.1 Hz to 10 Hz
Min Typ Max Unit
3.290 3.3 3.310 V
4
8
ppm/V
6
15
ppm/mA
0.80 V
1.00 V
1.2
mV
33
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.
Rev. I | Page 11 of 28
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