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REF191GSZ 数据表(PDF) 7 Page - Analog Devices

部件名 REF191GSZ
功能描述  Precision Micropower, Low Dropout Voltage References
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

REF191GSZ 数据表(HTML) 7 Page - Analog Devices

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REF19x Series
Rev. I | Page 7 of 28
ELECTRICAL CHARACTERISTICS—REF193 @ TA = 25°C
@ VS = 3.3 V, TA = 25°C, unless otherwise noted.
Table 8.
Parameter
Mnemonic
Condition
Min
Typ
Max
Unit
INITIAL ACCURACY1
G Grade
VO
IOUT = 0 mA
2.990
3.0
3.010
V
LINE REGULATION2
G Grade
ΔVO/ΔVIN
3.3 V, ≤ VS ≤ 15 V, IOUT = 0 mA
4
8
ppm/V
LOAD REGULATION2
G Grade
ΔVO/ΔVLOAD
VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA
6
15
ppm/mA
DROPOUT VOLTAGE
VS − VO
VS = 3.8 V, ILOAD = 10 mA
0.80
V
VS = 4.0 V, ILOAD = 30 mA
1.00
V
LONG-TERM STABILITY3
DVO
1000 hours @ 125°C
1.2
mV
NOISE VOLTAGE
eN
0.1 Hz to 10 Hz
30
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—REF193 @ −40°C ≤ TA ≤ +85°C
@ VS = 3.3 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.
Table 9.
Parameter
Mnemonic
Condition
Min
Typ
Max
Unit
TEMPERATURE COEFFICIENT1, 2
G Grade3
TCVO/°C
IOUT = 0 mA
10
25
ppm/°C
LINE REGULATION4
G Grade
ΔVO/ΔVIN
3.3 V ≤ VS ≤ 15 V, IOUT = 0 mA
10
20
ppm/V
LOAD REGULATION4
G Grade
ΔVO/ΔVLOAD
VS = 5.0 V, 0 mA ≤ IOUT ≤ 25 mA
10
20
ppm/mA
DROPOUT VOLTAGE
VS − VO
VS = 3.8 V, ILOAD = 10 mA
0.80
V
VS = 4.1 V, ILOAD = 30 mA
1.10
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
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.



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