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參數資料
| 型號： | LF411 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Offset, Low Drift JFET Input Operational Amplifier |
| 中文描述： | 低失調，低漂移JFET輸入運算放大器 |
| 文件頁數： | 2/4頁 |
| 文件大?。?/td> | 58K |
| 代理商： | LF411 |
LF411
JFET-INPUT OPERATIONAL AMPLIFIER
SLOS011C – MARCH 1987 – REVISED OCTOBER 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC+
Supply voltage, V
CC–
Differential input voltage, V
ID
Input voltage, V
I
(see Note 1)
Duration of output short circuit
Continuous total power dissipation
Package thermal impedance,
θ
JA
(see Note 2): D package
18 V
–18 V
±
30 V
±
15 V
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P package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
NOTES:
1. Unless otherwise specified, the absolute maximum negative input voltage is equal to the negative power supply voltage.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
Unlimited
500 mW
197
°
C/W
104
°
C/W
–65
°
C to 150
°
C
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
C SUFFIX
MIN
I SUFFIX
MIN
UNIT
MAX
MAX
Supply voltage, VCC +
Supply voltage, VCC –
Operating free-air temperature, TA
3.5
18
3.5
18
V
–3.5
–18
–3.5
–18
V
0
70
–40
–85
°
C
electrical characteristics over operating free-air temperature range, V
CC
±
=
±
15 V (unless otherwise
specified)
PARAMETER
TEST CONDITIONS
TA
MIN
TYP
MAX
UNIT
LF411C
25
°
C
LF411I
25
°
C
VIO
Input offset voltage
VIC = 0,
RS = 10 k
0.8
2
mV
α
VIO
Average temperature coeffi-
cient of input offset voltage
VIC = 0,
RS = 10 k
10
20
μ
V/
°
C
IIO
Inp t offset c rrent
Input offset current
VIC= 0
VIC = 0
25
°
C
70
°
C
25
°
C
70
°
C
25
°
C
85
°
C
25
°
C
85
°
C
25
100
pA
2
nA
IIB
Inp t bias c rrent
Input bias current
VIC= 0
VIC = 0
50
200
pA
4
nA
VICR
Common-mode input voltage
range
±
11
–11.5
to
14.5
V
VOM
Maximum peak output-voltage
swing
RL = 10 k
±
12
±
13.5
V
AVD
Large-signal differential
voltage
VO=
±
VO =
10 V,
RL= 2 k
RL = 2 k
25
°
C
25
°
C
25
200
V/mV
0
°
C to 70
°
C
–40
°
C to 85
°
C
15
200
1012
ri
CMR
R
Input resistance
TJ = 25
°
C
Common-mode rejection ratio
RS
≤
10 k
70
100
dB
kSVR
ICC
At least 90% of the devices meet this limit for
α
VIO.
Input bias currents of an FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques
must be used that will maintain the junction temperatures as close to the ambient temperature as possible.
NOTE 3: Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously.
Supply-voltage rejection ratio
See Note 3
70
100
dB
Supply current
2
3.4
mA
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