参数资料
型号: LM385Y-1-2
厂商: TEXAS INSTRUMENTS INC
元件分类: 基准电压源/电流源
英文描述: 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, UUC
封装: DIE
文件页数: 3/9页
文件大小: 152K
代理商: LM385Y-1-2
LM285-1.2, LM385-1.2, LM385B-1.2
MICROPOWER VOLTAGE REFERENCES
SLVS075C – APRIL 1989 – REVISED JULY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature
PARAMETER
TEST
T
LM285-1.2
LM385-1.2
LM385B-1.2
UNIT
PARAMETER
CONDITIONS
TA
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VZ
Reference
voltage
IZ = I(min)
to 20 mA
25
°C
1.223
1.235
1.247
1.21
1.235
1.26
1.223
1.235
1.247
V
αVZ
Average
temperature
coefficient of
reference
voltage§
IZ = I(min)
to 20 mA
25
°C
±20
ppm/
°C
Change in
IZ = I(min)
25
°C
1
VZ
Change in
reference
Z
()
to 1 mA
Full range
1.5
mV
VZ
voltage with
t
IZ = 1 mA
25
°C
12
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
10
8
15
8
15
A
z
Reference
IZ = 100 A,
25
°C
0.2
0.6
0.4
1
0.4
1
zz
impedance
Z
,
f = 25 Hz
Full range
1.5
Vn
Broadband
noise voltage
IZ = 100 A,
f = 10 Hz to
10 kHz
25
°C
60
V
Full range is –40
°C to 85°C for the LM285-1.2, and 0°C to 70°C for the LM385-1.2 and LM385B-1.2.
I(min) = 10
A for the LM285-1.2 and 15 A for the LM385-1.2 and LM385B-1.2.
§ The average temperature coefficient of reference voltage is defined as the total change in reference voltage divided by the specified temperature
range.
electrical characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
LM385Y-1.2
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VZ
Reference voltage
IZ = 15 A to 20 mA
1.21
1.235
1.26
V
αVZ
Average temperature coefficient of reference voltage§
IZ = 15 A to 20 mA
±20
ppm/
°C
VZ
Change in reference voltage with current
IZ = 15 A to 1 mA
1
mV
VZ
Change in reference voltage with current
IZ = 1 mA to 20 mA
20
mV
VZ/t
Long-term change in reference voltage
IZ = 100 A
±20
ppm/khr
IZ(min)
Minimum reference current
8
15
A
zz
Reference impedance
IZ = 100 A
0.4
1
Vn
Broadband noise voltage
IZ = 100 A,
f = 10 Hz to 10 kHz
60
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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