參數(shù)資料
型號: LM385Y-2-5
廠商: TEXAS INSTRUMENTS INC
元件分類: 基準電壓源/電流源
英文描述: 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, UUC
封裝: DIE
文件頁數(shù): 6/12頁
文件大?。?/td> 204K
代理商: LM385Y-2-5
LM285-2.5, LM385-2.5, LM385B-2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023E – JANUARY 1989 – REVISED JULY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature
PARAMETER
TEST
T
LM285-2.5
LM385-2.5
LM385B-2.5
UNIT
PARAMETER
CONDITIONS
TA
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VZ
Reference
voltage
IZ = 20 A
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 A
to 20 mA
25
°C
±20
ppm/
°C
Change in
IZ = 20 A
25
°C
1
2
VZ
Change in
reference
Z
to 1 mA
Full range
1.5
2
mV
VZ
voltage with
t
IZ = 1 A
25
°C
10
20
mV
current
Z
to 20 mA
Full range
30
VZ/t
Long-term
change in
reference
voltage
IZ = 100 A
25
°C
±20
ppm/khr
IZ(min)
Minimum
reference
current
Full range
8
20
8
20
8
20
A
z
Reference
IZ = 100 A
25
°C
0.2
0.6
0.4
1
0.4
1
zz
impedance
IZ = 100 A
Full range
1.5
Vn
Broadband
noise voltage
IZ = 100 A,
f = 10 Hz
to 10 kHz
25
°C
120
V
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.
electrical characteristics at TA = 25°C
PARAMETER
TEST CONDITIONS
LM385Y-2.5
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VZ
Reference voltage
IZ = 20 A to 20 mA
2.462
2.5
2.575
V
αVZ
Average temperature coefficient of reference voltage
IZ = 20 A to 20 mA
±20
ppm/
°C
VZ/t
Long-term change in reference voltage
IZ = 100 A
±20
ppm/khr
zz
Reference impedance
IZ = 100 A
0.4
1
Vn
Broadband noise voltage
IZ = 100 A,
f = 10 Hz to 10 kHz
120
V
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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