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REF2125 Datasheet(PDF) 5 Page - Texas Instruments

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Part # REF2125
Description  REF2125 Low-Drift, Low-Power, Small-Footprint, Series Voltage Reference With Clean Start
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

REF2125 Datasheet(HTML) 5 Page - Texas Instruments

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5
REF2125
www.ti.com
SBAS798 – SEPTEMBER 2017
Product Folder Links: REF2125
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)
Dropout voltage under test condition is 100mV.
(3)
In clean start section it is referred as IPEAK.
(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.
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(3)
VREF = 0, CCS = No connect, TA = 25°C
18
mA
RCS = 500kΩ, TA = 25°C
7
mA
CCS = GND, TA = 25°C
0.5
mA
NOISE
en p-p
Output voltage
noise(4)
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(5)
1000 hours
30
ppm
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
TURNON
tON
Turnon time
0.1% of output voltage settling, CL = 10 µF,
REF2125
2.5
ms
CAPACITIVE LOAD
CL
Stable output
capacitor value
−40°C ≤ TA ≤ 125°C
0.1
10
µF
OUTPUT VOLTAGE
VREF
Output voltage
REF2125
2.5
V


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