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REF3425 数据表(PDF) 5 Page - Texas Instruments

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部件名 REF3425
功能描述  REF3425 Low-Drift, Low-Power, Small-Footprint Series Voltage Reference
PDF  25 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

REF3425 数据表(HTML) 5 Page - Texas Instruments

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REF3425
www.ti.com
SBAS804 – SEPTEMBER 2017
Product Folder Links: REF3425
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
(1)
Temperature drift is specified according to the box method. See Feature Description for more details.
(2)
The dropout voltage in test condition is 100mV.
(3)
The peak-to-peak noise measurement procedure is explained in more detail in Noise Performance.
(4)
Long-term stability measurement procedure is explained in more in detail in Long-Term Stability.
(5)
The thermal hysteresis measurement procedure is explained in more detail in Thermal Hysteresis.
6.5 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
–0.05%
0.05%
Output voltage
temperature
coefficient(1)
2.5
6
ppm/°C
LINE AND LOAD REGULATION
ΔV(OΔVIN)
Line regulation
VIN = 2.55 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/mA
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
(2), T
A = 25°C
Sinking
40
IL = 0 mA to –10 mA, VIN =
VREF+ VDO
(2), −40°C ≤ T
A ≤
125°C
Sinking
70
ISC
Short-circuit current
(Output shorted to
ground)
VREF = 0, TA = 25°C
18
22
mA
NOISE
en p-p
Output voltage
noise(3)
ƒ = 0.1 Hz to 10 Hz
5
μV p-p/V
ƒ = 10 Hz to 10 kHz
24
μV rms
en
Output voltage noise
density
ƒ = 1 kHz
0.25
ppm/
√Hz
HYSTERESIS AND LONG TERM STABILITY
Long-term stability(4)
1000 hours
30
ppm
Output voltage
hysteresis(5)
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
TURNON
tON
Turnon time
0.1% of output voltage settling, CL = 10 µF,
REF3425
2.5
ms
CAPACITIVE LOAD
CL
Stable output
capacitor value
−40°C ≤ TA ≤ 125°C
0.1
10
µF
OUTPUT VOLTAGE
VREF
Output voltage
REF3425
2.5
V



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