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LM285-2.5 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LM285-2.5
Description  MICROPOWER VOLTAGE REFERENCES
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM285-2.5 Datasheet(HTML) 3 Page - Texas Instruments

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LM2852.5, LM3852.5, LM385B2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023I − JANUARY 1989 − REVISED FEBRUARY 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Reverse current, IR
30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward current, IF
10 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Notes 1 and 2): D package
97
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP package
140
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
149
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
−65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. Maximum power dissipation is a function of TJ(max),θJA,and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) − TA)/θJA. Operation at the absolute maximum TJ of 150°C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
MIN
MAX
UNIT
IZ
Reference current
0.02
20
mA
TA
Operating free-air temperature range
LM285-2.5
−40
85
°C
TA
Operating free-air temperature range
LM385-2.5, LM385B-2.5
0
70
°C
electrical characteristics at specified free-air temperature
PARAMETER
TEST
TA‡
LM285-2.5
LM385-2.5
LM385B-2.5
UNIT
PARAMETER
TEST
CONDITIONS
TA‡
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VZ
Reference
voltage
IZ = 20 µA
to 20 mA
25
°C
2.462
2.5
2.538
2.425
2.5
2.575
2.462
2.5
2.538
V
αVZ
Average
temperature
coefficient of
reference
voltage§
IZ = 20 µA
to 20 mA
Full range
±20
±20
±20
ppm/
°C
Change in
IZ = 20 µA
25
°C
1
2
2
∆VZ
Change in
reference
IZ = 20 µA
to 1 mA
Full range
1.5
2
2
mV
∆VZ
reference
voltage with
current
IZ = 1 µA
25
°C
10
20
20
mV
voltage with
current
IZ = 1 µA
to 20 mA
Full range
30
30
30
∆VZ/∆t
Long-term
change in
reference
voltage
IZ = 100 µA
25
°C
±20
±20
±20
ppm/khr
IZ(min)
Minimum
reference
current
Full range
8
20
8
20
8
20
µA
zz
Reference
IZ = 100 A
25
°C
0.2
0.6
0.4
1
0.4
1
zz
Reference
impedance
IZ = 100 µA
Full range
1.5
1.5
1.5
Vn
Broadband
noise
voltage
IZ = 100 µA,
f = 10 Hz
to 10 kHz
25
°C
120
120
120
µV
‡ Full range is 0°C to 70°C for the LM385-2.5 and LM385B-2.5, and −40°C to 85°C for the LM285-2.5.
§ The average temperature coefficient of reference voltage is defined as the total change in reference voltage divided by the specified temperature
range.


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