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REF2025 数据表(PDF) 5 Page - Texas Instruments

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部件名 REF2025
功能描述  Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References
PDF  33 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

REF2025 数据表(HTML) 5 Page - Texas Instruments

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5
REF2025, REF2030, REF2033, REF2041
www.ti.com
SBOS600C – MAY 2014 – REVISED JANUARY 2017
Product Folder Links: REF2025 REF2030 REF2033 REF2041
Submit Documentation Feedback
Copyright © 2014–2017, Texas Instruments Incorporated
(1)
Temperature drift is specified according to the box method. See the Feature Description section for more details.
(2)
The VREF and VBIAS tracking over temperature specification is explained in more detail in the Feature Description section.
(3)
The peak-to-peak noise measurement procedure is explained in more detail in the Noise Performance section.
(4)
The thermal hysteresis measurement procedure is explained in more detail in the Thermal Hysteresis section.
7.5
Electrical Characteristics
At TA = 25°C, IL = 0 mA, and VIN = 5 V, unless otherwise noted. Both VREF and VBIAS have the same specifications.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ACCURACY AND DRIFT
Output voltage accuracy
–0.05%
0.05%
Output voltage temperature coefficient(1)
–40°C
≤ TA ≤ 125°C
±3
±8
ppm/°C
VREF and VBIAS tracking over temperature
(2)
–40°C
≤ TA ≤ 85°C
±1.5
±6
ppm/°C
–40°C
≤ TA ≤ 125°C
±2
±7
LINE AND LOAD REGULATION
ΔVO(ΔVI)
Line regulation
VREF + 0.02 V ≤ VIN ≤ 5.5 V
3
35
ppm/V
ΔVO(ΔIL)
Load regulation
Sourcing
0 mA
≤ IL ≤ 20 mA ,
VREF + 0.6 V ≤ VIN ≤ 5.5 V
8
20
ppm/mA
Sinking
0 mA
≤ IL ≤ –20 mA,
VREF + 0.02 V ≤ VIN ≤ 5.5 V
8
20
POWER SUPPLY
ICC
Supply current
Active mode
360
430
µA
–40°C
≤ TA ≤ 125°C
460
Shutdown mode
3.3
5
–40°C
≤ TA ≤ 125°C
9
Enable voltage
Device in shutdown mode (EN = 0)
0
0.7
V
Device in active mode (EN = 1)
VIN – 0.7
VIN
Dropout voltage
10
20
mV
IL = 20 mA
600
ISC
Short-circuit current
50
mA
ton
Turn-on time
0.1% settling, CL = 1 µF
500
µs
NOISE
Low-frequency noise(3)
0.1 Hz
≤ f ≤ 10 Hz
12
ppmPP
Output voltage noise density
f = 100 Hz
0.25
ppm/
√Hz
CAPACITIVE LOAD
Stable output capacitor range
0
10
µF
HYSTERESIS AND LONG TERM STABILITY
Long-term stability
0 to 1000 hours
60
ppm
Output voltage hysteresis(4)
25°C, –40°C, 125°C, 25°C
Cycle 1
60
ppm
Cycle 2
35



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