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LT1490 数据手册 - Linear Technology（凌力尔特）
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LT1490数据手册
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2
LT1490/LT1491
Junction Temperature...........................................150°C
Specified Temperature Range (Note 3) .. –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Total Supply Voltage (V
+
to V
–
) .............................. 44V
Input Differential Voltage ......................................... 44V
Input Current ......................................................±25mA
Output Short-Circuit Duration (Note 2).........Continuous
Operating Temperature Range ................ –40°C to 85°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
Consult factory for Military grade parts.
LT1491CN
LT1491CS
LT1491IN
LT1491IS
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
N PACKAGE
14-LEAD PDIP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
A
B
C
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
–
+IN C
– IN C
OUT C
D
T
JMAX
= 150°C, θ
JA
= 110°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/ W (S)
T
JMAX
= 150°C, θ
JA
= 250°C/ W (MS8)
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
MS8 PACKAGE
8-LEAD MSOP
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
V
+
OUT B
–IN B
+IN B
A
B
OUT A
–IN A
+IN A
V
–
S8 PART MARKING
MS8 PART MARKING
ORDER PART
NUMBER
LTBB
1490 1490I
LT1490CMS8
LT1490CN8
LT1490CS8
LT1490IN8
LT1490IS8
ABSOLUTE AXI U RATI GS
WWWU
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1490 N Package 220 800 µV
0°C ≤ T
A
≤ 70°C ● 1000 µV
–40°C ≤ T
A
≤ 85°C ● 1100 µV
LT1490 S Package 220 950 µV
0°C ≤ T
A
≤ 70°C ● 1200 µV
–40°C ≤ T
A
≤ 85°C ● 1300 µV
LT1491 N Package 300 1100 µV
0°C ≤ T
A
≤ 70°C ● 1350 µV
–40°C ≤ T
A
≤ 85°C ● 1450 µV
LT1490CMS8 Package, LT1491 S Package 350 1450 µV
0°C ≤ T
A
≤ 70°C ● 1650 µV
–40°C ≤ T
A
≤ 85°C ● 1750 µV
V
OS
TC Input Offset Voltage Drift 0°C ≤ T
A
≤ 70°C (Note 7) ● 24 µV/°C
–40°C ≤ T
A
≤ 85°C (Note 7) ● 24 µV/°C
I
OS
Input Offset Current ● 0.2 0.8 nA
V
CM
= 44V (Note 4) ● 0.8 µA
I
B
Input Bias Current ● 48 nA
V
CM
= 44V (Note 4) ● 410 µA
V
S
= 0V 0.1 nA
Input Noise Voltage 0.1Hz to 10Hz 1 µV
P-P
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted. (Note 3)
(For new designs, use the LT1490A or LT1491A)
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