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REF193 Datasheet(PDF) 5 Page - Analog Devices

Part # REF193
Description  Precision Micropower, Low Dropout Voltage References
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

REF193 Datasheet(HTML) 5 Page - Analog Devices

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REF19x Series
Rev. I | Page 5 of 28
ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ TA ≤+125°C
@ VS = 3.3 V, −40°C ≤ TA ≤ +125°C, unless otherwise noted.
Table 4.
Parameter
Mnemonic
Condition
Min
Typ
Max
Unit
TEMPERATURE COEFFICIENT1, 2
E Grade
TCVO/°C
IOUT = 0 mA
2
ppm/°C
F Grade
5
ppm/°C
G Grade3
10
ppm/°C
LINE REGULATION4
E Grade
ΔVO/ΔVIN
3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA
10
ppm/V
F and G Grades
20
ppm/V
LOAD REGULATION4
E Grade
ΔVO/ΔVLOAD
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
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.
ELECTRICAL CHARACTERISTICS—REF192 @ TA = 25°C
@ VS = 3.3 V, TA = 25°C, unless otherwise noted.
Table 5.
Parameter
Mnemonic
Condition
Min
Typ
Max
Unit
INITIAL ACCURACY1
E Grade
VO
IOUT = 0 mA
2.498
2.500
2.502
V
F Grade
2.495
2.505
V
G Grade
2.490
2.510
V
LINE REGULATION2
E Grade
ΔVO/ΔVIN
3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA
2
4
ppm/V
F and G Grades
4
8
ppm/V
LOAD REGULATION2
E Grade
ΔVO/ΔVLOAD
VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA
4
10
ppm/mA
F and G Grades
6
15
ppm/mA
DROPOUT VOLTAGE
VS − VO
VS = 3.5 V, ILOAD = 10 mA
1.00
V
VS = 3.9 V, ILOAD = 30 mA
1.40
V
LONG-TERM STABILITY3
DVO
1000 hours @ 125°C
1.2
mV
NOISE VOLTAGE
eN
0.1 Hz to 10 Hz
25
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.


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