LT1457CN8 查看數據表（PDF） - Linear Technology
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LT1457CN8 Datasheet PDF : 8 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1457
Common-Mode Rejection Ratio
vs Frequency
120
VS = ±15V
100
TA = 25°C
80
60
40
20
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
LT1457• TPC10
Slew Rate, Gain-Bandwidth
Product vs Temperature
10
VS = ±15V 2.5
8
SLEW FALL 2.0
6
GBW
1.5
4
SLEW RISE 1.0
2
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
LT1457 • TPC18
Gain, Phase vs Frequency
25
PHASE MARGIN = 80°, CL = 10pF
20
PHASE MARGIN = 51°, CL = 1000pF 100
15
CL = 10pF 80
10
PHASE
60
5
CL = 1000pF 40
0
GAIN
20
–5
–10
–15
0.1
VS = ±15V
TA = 25°C
CL = 1000pF
CL = 10pF
1.0
FREQUENCY (MHz)
0
–20
10
LT1457 • TPC16
Common-Mode Range vs
Temperature
15
14
13
12
11
±10
–11
–12
–13
–14 VS = ±15V
–15
– 50 –25 0
25 50 75 100
TEMPERATURE (°C)
LT1457 • TPC11
Supply Current vs Temperature
3
2
VS = ±15V
VS = ±5V
1
0
– 50
–25 0 25 50
TEMPERATURE (°C)
75 100
LT1457 • TPC14
Common-Mode and Power Supply
Rejections vs Temperature
120
VS = ±5V TO ±17V FOR PSRR
VS = ±15V, VCM = ±10.5V FOR CMRR
110
PSRR
CMRR
100
90
– 50
–25 0 25 50
TEMPERATURE (°C)
75 100
LT1457 • TPC12
Short-Circuit Current vs Time
(One Output Shorted to Ground)
50
40
TA = – 40°C
30
20
10
TA = 25°C
0
–10
TA = 25°C
TA = 85°C
TA = 85°C
–20
–30
– 40 VS = ±15V
TA = – 40°C
– 50
0
1
2
3
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
LT1457 • TPC15
Undistorted Output Swing vs
Frequency
30
VS = ±15V
TA = 25°C
24
18
12
6
0
10k
100k
1M
FREQUENCY (Hz)
10M
LT11457• TPC17
Power Supply Rejection Ratio
vs Frequency
140
TA = 25°C
120
100
POSITIVE
80
SUPPLY
60
NEGATIVE
SUPPLY
40
20
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
LT1457• TPC13
5
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