LT1881 查看數據表（PDF） - Linear Technology
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LT1881 Datasheet PDF : 18 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1881/LT1882
Output Saturation Voltage
vs Load Current (Output Low)
10
VS = ±15V
VOVERDRIVE = 30mV
1
0.1
0.01
0.001
0.001
TA = –55°C
TA = –40°C
TA = 25°C
TA = 85°C
TA = 125°C
0.01
0.1
1
10
SINKING LOAD CURRENT (mA)
18812 G27
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)
18812 G28
Output Voltage
vs Large Input Voltage
VIN
VOUT
AV = 1
VS = ±2.5V
VIN = ±5V
RIN = 10k
GND
GND
18812 G29
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)
18812 G30
Gain Bandwidth Product
vs Temperature
680
VS = ±15V
660
640
620
600
VS = ±2.5V
580
560
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
18812 G33
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
18812 G31
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)
18812 G32
Output Impedance vs Frequency
100
VS = ±2.5V
10
AV = 100
1
AV = 10
0.1
AV = 1
0.01
0.001
100
1k
10k
FREQUENCY (Hz)
100k
18812 G34
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)
18812 G35
18812fb
11
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