LT1881(RevA) 查看數據表（PDF） - Linear Technology
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LT1881
(Rev.:RevA)
(Rev.:RevA)
Linear Technology
LT1881 Datasheet PDF : 16 Pages
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LT1881/LT1882
TYPICAL PERFOR A CE CHARACTERISTICS
LT1881 Output Saturation Voltage
vs Load Current (Output Low)
1
VS = ±15V
VOD = 30mV
TA = 85°C
0.1
TA = 25°C
TA = –40°C
0.01
0.001
0.001
0.01
0.1
1
10
SINKING LOAD CURRENT (mA)
1881/2 G27
LT1881 Output Short-Circuit
Current vs Temperature
60
56
52
48
44
40
36
32
SINKING
28
24
20
SOURCING
16
12
8
4
0
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1881/2 G28
LT1881 Output Voltage vs Large
Input Voltage
VIN
GND
VOUT
GND
AV = 1
VS = ±2.5V
VIN = ±5V
RIN = 10k
1881 G29.tif
LT1881 Open-Loop Gain vs
Frequency
140
130
120
VS = ±15V
110
100
90
80
70
60
50
40
30
20
10
0
–10
–20
0.1 1 10 100 1k 10k 100k 1M 10M100M
FREQUENCY (Hz)
1881/2 G30
LT1881 Open-Loop Gain and
Phase vs Frequency
70
175
60 VS = ±5V
150
50
120
40
100
30
PHASE
75
20
50
10
25
LOOP GAIN
0
0
–10
–25
–20
–50
–30
1k
10k
100k
1M
FREQUENCY (Hz)
–100
10M
1881/2 G31
Gain Bandwidth Product vs
Temperature
900
VS = ±15V
850
800
VS = ± 2.5V
750
700
650
600
Output Impedance vs Frequency
100
VS = ± 2.5V
10
AV = 100
1
AV = 10
0.1
AV = 1
0.01
550
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1881/2 G33
0.001
100
1k
10k
FREQUENCY (Hz)
100k
1881/2 G34
10
LT1881 Channel Separation vs
Frequency
–20
VS = ±15V
–40 AV = 10
–60
–80
–100
–120
–140
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
1881/2 G32
LT1881 PSRR vs Frequency
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
–10
1
VS = ±15V
–PSSR
+PSSR
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
1881/2 G35
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