参数资料
型号: LT1009CDRE4
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, 2.5 V, PDSO8
封装: GREEN, PLASTIC, SOIC-8
文件页数: 16/21页
文件大小: 596K
代理商: LT1009CDRE4
ELECTRICAL CHARACTERISTICS
Maximum V
Z
Minimum V
Z
V
at I = 1 mA
Z(dev)
Z
D
T
A
D
T
A
× 10
6
V
Z(dev)
V at 25°C
Z
=
| V |
a
Z
ppm
°C
70°C
× 10
6
4 mV
2500 mV
| V | =
a
Z
ppm
°C
23
SLVS013N – MAY 1987 – REVISED MAY 2009................................................................................................................................................................. www.ti.com
at specified free-air temperature
LT1009C
LT1009I
PARAMETER
TEST CONDITIONS
TA
(1)
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
D/PW package
2.49
2.5
2.51
2.49
2.5
2.51
25°C
LP package
2.495
2.5
2.505
2.495
2.5
2.505
VZ
Reference voltage
IZ = 1 mA
V
D/PW package
2.485
2.515
2.475
2.525
Full range
LP package
2.491
2.509
2.48
2.52
VF
Forward voltage
IF = 2 mA
25°C
0.4
1
0.4
1
V
IZ = 1 mA,
125
VADJ = GND to VZ
Adjustment range
25°C
mV
IZ = 1 mA,
45
VADJ = 0.6 V to VZ – 0.6 V
Change in reference
D/PW package
5
15
ΔVZ(temp)
voltage with
Full range
mV
LP package
4
15
temperature
Average temperature
0°C to 70°C
15
25
15
25
ppm/
αV
Z
coefficient of
IZ = 1 mA, VADJ = open
°C
–40°C to 85°C
20
35
reference voltage(2)
25°C
2.6
10
2.6
6
Change in reference
ΔVZ
IZ = 400 A to 10 mA
mV
voltage with current
Full range
12
10
Long-term change in
ppm/
ΔVZ/Δt
IZ = 1 mA
25°C
20
reference voltage
khr
25°C
0.3
1
0.3
1
ZZ
Reference impedance IZ = 1 mA
Full range
1.4
(1)
Full range is 0°C to 70°C for the LT1009C and –40°C to 85°C for the LT1009I.
(2)
The deviation parameter VZ(dev) is defined as the difference between the maximum and minimum values obtained over the
recommended operating temperature range, measured at IZ = 1 mA. The average full-range temperature coefficient of the reference
voltage (
αV
Z) is defined as:
αV
Z can be positive or negative, depending upon whether the minimum VZ or maximum VZ, respectively, occurs at the lower
temperature.
For example, at IZ = 1 mA, maximum VZ = 2501 mV at 30°C, minimum VZ = 2497 mV at 0°C, VZ = 2500 mV at 25°C, ΔTA = 70°C for
LT1009C:
Because minimum VZ occurs at the lower temperature, the coefficient in this example is positive.
4
Copyright 1987–2009, Texas Instruments Incorporated
Product Folder Link(s): LT1009
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