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參數(shù)資料
| 型號(hào)： | LT1002M |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual, Matched Precision Operational Amplifier |
| 中文描述： | 雙路，精密運(yùn)算放大器匹配 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 344K |
| 代理商： | LT1002M |
6
LT1002
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
±
DIFFERENTIAL INPUT (VOLTS)
0.1
0
I
I
10
20
30
1.0
3.0
0.3
10
30
1002 G12
V
S
=
±
15V
T
A
= 25
°
C
I
B
≈
1 nA
Input Bias Current vs.
Differential Input Voltage
TEMPERATURE (
°
C)
–50
1200k
O
1000k
800k
600k
400k
200k
0
25
75
1002 G13
–25
0
50
100
125
V
S
=
±
15V, V
O
=
±
12V
V
S
=
±
3V, V
O
=
±
1V
Matching and Individual Amplifier
Bias and Offset Currents vs Temperature
TEMPERATURE (
°
C)
–50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
25
75
1001 G10
–25
0
50
100
125
I
V
S
=
±
15V
MATCHING: NON INVERTING
BIAS CURRENT
M
A
T
C
H
I
N
G
:
I
N
V
E
R
I
N
G
&
N
O
N
-
I
N
V
.
O
F
F
S
E
T
C
U
R
R
E
N
T
I
N
D
I
V
I
D
U
A
L
A
M
P
B
I
A
S
C
U
R
R
E
N
T
I
N
D
I
V
I
D
U
A
L
A
M
P
O
F
F
S
E
T
C
U
R
R
E
N
T
COMMON-MODE INPUT VOLTAGE
–15
I
1.5
1.0
0.5
0
–.5
–1.0
–1.5
–10
–5
0
5
1002 G11
10
15
V
S
=
±
15V
T
A
= 25
°
C
DEVICE WITH POSITIVE INPUT CURRENT
DEVICE WITH NEGATIVE INPUT CURRENT
–
+
V
CM
I
b
COMMON-MODE
INPUT RESISTANCE =
0. = 280G
28V
Input Bias Current
Over the Common Mode Range
Open Loop Voltage Gain
vs Temperature
FREQUENCY (Hz)
0.1
O
10M
1002 G14
10
100
10k
1M
1
1k
100k
140
120
100
80
60
40
20
0
–20
T
A
= 25
°
C
V
S
=
±
15V
V
S
=
±
3V
Open Loop Voltage Gain
Frequency Response
FREQUENCY (MHz)
0.1
0.2
0.5
V
P
1
1002 G15
°
C = 63
°
125
°
C = 57
°
20
16
12
8
4
0
–4
–8
80
100
120
140
160
180
200
220
2
PHASE 25
°
C
GAIN 125
°
C
GAIN 25
°
C & –55
°
C
V
S
=
±
15V
25
°
C
PHASE
MARGIN
= 60
°
Gain, Phase Shift vs. Frequency
Open Loop Gain Mismatch
vs Frequency
FREQUENCY (Hz)
1
O
1.0
0.8
0.6
0.4
0.2
0
10k
1002 G16
10
100
1k
100k
V
S
=
±
15V
T
A
= 25
°
C
PERCENT GAIN MISMATCH =
OUTPUT A – OUTPUT B
1
/
2
(OUTPUT A + OUTPUT B)
×
100%
FREQUENCY (Hz)
1
O
)
100
10
1
0.1
0.01
0.001
10k
1002 G17
10
100
1k
100k
A
V
= 1000
A
V
= +1
I
O
=
±
1mA
V
S
=
±
15V
T
A
= 25
°
C
Closed Loop Output Impedance
Power Supply Rejection and
PSRR Match vs Frequency
FREQUENCY (Hz)
P
160
140
120
100
80
60
40
20
0
1002 G18
0.1
1
10
100
1k
10k
100k
V
S
=
±
15V
±
2V
pp
T
A
= 25
°
C
MATCH (NEGATIVE SUPPLY)
MATCH (POSITIVE SUPPLY)
POSITIVE SUPPLY
NEGATIVE SUPPLY
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