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REF3425 データシート(PDF) 5 Page - Texas Instruments

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部品番号 REF3425
部品情報  Low-Drift, Low-Power, Small-Footprint Series Voltage References
PDF  28 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

REF3425 データシート(HTML) 5 Page - Texas Instruments

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REF3425-Q1, REF3430-Q1, REF3433-Q1, REF3440-Q1, REF3450-Q1
www.ti.com
SBAS901 – JULY 2018
Product Folder Links: REF3425-Q1 REF3430-Q1 REF3433-Q1 REF3440-Q1 REF3450-Q1
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Copyright © 2018, Texas Instruments Incorporated
(1)
Temperature drift is specified according to the box method. See Feature Description for more details.
(2)
The dropout voltage in line regulation test condition is 50 mV.
(3)
The dropout voltage in test condition is 500 mV.
(4)
The peak-to-peak noise measurement procedure is explained in more detail in Noise Performance.
(5)
Long-term stability measurement procedure is explained in more in detail in Long-Term Stability.
(6)
The thermal hysteresis measurement procedure is explained in more detail in Thermal Hysteresis.
7.5 Electrical Characteristics
At TA = 25°C unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ACCURACY AND DRIFT
Output voltage
accuracy
–40°C
≤ TA ≤ 125°C
–0.0
5%
0.05%
Output voltage
temperature
coefficient(1)
2.5
6 ppm/°C
LINE AND LOAD REGULATION
ΔV(OΔVIN)
Line regulation
VIN = 5.05 V to 12 V , TA = 25°C
2
ppm/V
VIN = VREF + VDO
(2) to 12 V, −40°C ≤ T
A ≤ 125°C
15
ΔV(OΔIL)
Load regulation
IL = 0 mA to 10 mA, VIN = 3 V, TA =
25°C
Sourcing
20
ppm/m
A
IL = 0 mA to 10 mA, VIN = 3 V,
−40°C ≤ TA ≤ 125°C
Sourcing
30
IL = 0 mA to –10 mA, VIN = VREF+
VDO
(3), T
A = 25°C
Sinking
REF3425-Q1
40
REF3430-Q1
43
REF3433-Q1
48
REF3440-Q1
60
REF3450-Q1
70
IL = 0 mA to –10 mA, VIN = VREF+
VDO
(3), −40°C ≤ T
A ≤ 125°C
Sinking
REF3425-Q1
70
REF3430-Q1
75
REF3433-Q1
84
REF3440-Q1
98
REF3450-Q1
140
ISC
Short-circuit
current (Output
shorted to
ground)
VREF = 0, TA = 25°C
18
22
mA
NOISE
en p-p
Output voltage
noise(4)
ƒ = 0.1 Hz to 10 Hz
5
μV p-
p/V
ƒ = 0.1 Hz to 10 Hz (REF3440-Q1 and REF3450-Q1)
3.8
μV p-
p/V
ƒ = 10 Hz to 10 kHz
24
μV rms
en
Output voltage
noise density
ƒ = 1 kHz
0.25
ppm/
√H
z
ƒ = 1 kHz (REF3440-Q1 and REF3450-Q1)
0.2
ppm/
√H
z
HYSTERESIS AND LONG TERM STABILITY
Long-term
stability(5)
0 - 1000 hours at 35°C
25
ppm
1000 - 2000 hours at 35°C
10
Output voltage
hysteresis(6)
TA = 25°C to −40°C to 125°C to 25°C, Cycle 1
30
ppm
TA = 25°C to −40°C to 125°C to 25°C, Cycle 2
10



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