LT1881 查看數據表（PDF） - Linear Technology
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LT1881 Datasheet PDF : 18 Pages
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LT1881/LT1882
TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
120
100
80
60
40
20
0
0.1 1 10 100 1k 10k 100k 1M
FREQUENCY (Hz)
1881/2 G36
0.1Hz to 10Hz Noise
0
5 10 15 20 25 30
1s/DIV
18812 G37
Noise Voltage vs Frequency
50
VS = ±5V
45
AV = 1
40
35
30
25
20
15
10
5
0
1
10
100
1k
FREQUENCY (Hz)
18812 G38
Noise Current Density
vs Frequency
180
160
VS = ±15V
140
120
100
80
60
40
20
0
1
10
100
1000
FREQUENCY (Hz)
18812 G39
Total Noise vs Source Resistance
1000
100
10
1
1 10 100 1k 10k 100k 1M
RS (Ω)
18812 G40
Overshoot vs Capacitive Load
30
VS = ±15V
RL = 10k
25
20
AV = 1
15
AV = –1
10
5
0
10
100
1k
10k
CAPACITIVE LOAD (pF)
18812 G41
Series Output Resistance
vs Capacitive Load
120
AV = 1
TA = 25°C
100
VS = ±2.5V
80
VS = ±15V
60
40
20
0
0 2000 4000 6000 8000 10000
CAPACITIVE LOAD (pF)
1881/2 G42
Undistorted Output Swing
vs Frequency
35
30
25
AV = –1
TA = 25°C
VS = ±15V
20
15
10
AV = –1
TA = 25°C
VS = ±2.5V
5
0
1
10
FREQUENCY (kHz)
100
18812 G43
THD + Noise vs Frequency
10
VS = ±15V
VIN = 2VP-P
1
0.1
0.01
0.001
0.0001
10
AV = –1
AV = 1
100
1k
10k
FREQUENCY (Hz)
100k
18812 G44
18812fb
12
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