REF191 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
REF191 Datasheet PDF : 28 Pages
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REF19x Series
ELECTRICAL CHARACTERISTICS—REF193 @ TA = 25°C
@ VS = 3.3 V, TA = 25°C, unless otherwise noted.
Table 8.
Parameter
INITIAL ACCURACY1
Mnemonic
Condition
G Grade
LINE REGULATION2
VO
IOUT = 0 mA
G Grade
LOAD REGULATION2
ΔVO/ΔVIN
3.3 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 = 3.8 V, ILOAD = 10 mA
VS = 4.0 V, ILOAD = 30 mA
1000 hours @ 125°C
0.1 Hz to 10 Hz
Min Typ
2.990 3.0
4
6
1.2
30
Max
3.010
8
15
0.80
1.00
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.
Unit
V
ppm/V
ppm/mA
V
V
mV
μV p-p
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
TEMPERATURE COEFFICIENT1, 2
G Grade3
TCVO/°C
IOUT = 0 mA
LINE REGULATION4
G Grade
ΔVO/ΔVIN
3.3 V ≤ VS ≤ 15 V, IOUT = 0 mA
LOAD REGULATION4
G Grade
ΔVO/ΔVLOAD
VS = 5.0 V, 0 mA ≤ IOUT ≤ 25 mA
DROPOUT VOLTAGE
VS − VO
VS = 3.8 V, ILOAD = 10 mA
VS = 4.1 V, ILOAD = 30 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
10
10
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 Unit
25 ppm/°C
20 ppm/V
20 ppm/mA
0.80 V
1.10 V
V
−8 μA
0.8 V
−8 μA
45 μA
15 μA
Rev. I | Page 7 of 28
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