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REF2912 数据表(PDF) 3 Page - Texas Instruments

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部件名 REF2912
功能描述  100ppm/째C, 50關A in SOT23-3 CMOS VOLTAGE REFERENCE
PDF  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

REF2912 数据表(HTML) 3 Page - Texas Instruments

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REF2912, 2920, 2925, 2930, 2933, 2940
3
SBVS033B
www.ti.com
ELECTRICAL CHARACTERISTICS (Cont.)
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, ILOAD = 0mA, VIN = 5V, unless otherwise noted.
REF29xx
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
REF2930
OUTPUT VOLTAGE
V
OUT
2.940
3.0
3.06
V
Initial Accuracy
2%
NOISE
Output Voltage Noise
f = 0.1Hz to 10Hz
33
µV
PP
Voltage Noise
f = 10Hz to 10kHz
94
µVrms
LINE REGULATION
VREF + 50mV ≤ VIN ≤ 5.5V
120
375
µV/V
REF2933
OUTPUT VOLTAGE
V
OUT
3.234
3.30
3.366
V
Initial Accuracy
2%
NOISE
Output Voltage Noise
f = 0.1Hz to 10Hz
36
µV
PP
Voltage Noise
f = 10Hz to 10kHz
105
µVrms
LINE REGULATION
VREF + 50mV ≤ VIN ≤ 5.5V
130
400
µV/V
REF2940
OUTPUT VOLTAGE
V
OUT
4.014
4.096
4.178
V
Initial Accuracy
2%
NOISE
Output Voltage Noise
f = 0.1Hz to 10Hz
45
µV
PP
Voltage Noise
f = 10Hz to 10kHz
128
µVrms
LINE REGULATION
VREF + 50mV ≤ VIN ≤ 5.5V
160
410
µV/V
REF2912, REF2920, REF2925, REF2930, REF2933, REF2940
OUTPUT VOLTAGE TEMP DRIFT(2)
dV
OUT/dT
–40
°C ≤ T
A ≤ +125°C
35
100
ppm/
°C
OUTPUT CURRENT
ILOAD
25
mA
LONG-TERM STABILITY
0-1000H
24
ppm
1000-2000H
15
ppm
LOAD REGULATION(3)
dVOUT/dILOAD
0mA < I
LOAD < 25mA,
3
100
µV/mA
VIN = VREF + 500mV(1)
THERMAL HYSTERESIS(4)
dT
25
100
ppm
DROPOUT VOLTAGE
VIN – VOUT
150
mV
SHORT-CIRCUIT CURRENT
I
SC
45
mA
TURN-ON SETTLING TIME
to 0.1% at VIN = 5V with CL = 0
120
µs
POWER SUPPLY
Voltage
V
S
IL = 0
VREF + 0.001(5)
5.5
V
Over Temperature
–40
°C ≤ T
A ≤ +125°CVREF + 0.05
5.5
V
Quiescent Current
I
Q
42
50
µA
Over Temperature
–40
°C ≤ T
A ≤ +125°C59
µA
TEMPERATURE RANGE
Specified Range
–40
+125
°C
Operating Range
–40
+125
°C
Storage Range
–65
+150
°C
Thermal Resistance
SOT23-3 Surface-Mount
θ
JC
110
°C/W
θ
JA
336
°C/W
NOTES: (1) Minimum supply voltage for REF2912 is 1.8V. (2) Box Method used to determine over temperature drift. (3) Typical value of load regulation reflects
measurements using a force and sense contacts, see text “Load Regulation”. (4) Thermal hysteresis procedure is explained in more detail in Applications Information
section of data sheet. (5) For IL > 0, see Typical Characteristic curves.



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