LT1920CN8 查看數據表（PDF） - Linear Technology
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LT1920CN8 Datasheet PDF : 12 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1920
Positive Power Supply Rejection
Ratio vs Frequency
160
140
G = 10
120
G = 100
V – = – 15V
TA = 25°C
G = 1000
100
G=1
80
60
40
20
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
1920 G16
Voltage Noise Density
vs Frequency
1000
VS = ±15V
TA = 25°C
1/fCORNER = 10Hz
100
GAIN = 1
1/fCORNER = 9Hz
GAIN = 10
10
1/fCORNER = 7Hz GAIN = 100, 1000
BW LIMIT
GAIN = 1000
0
1
10 100 1k 10k 100k
FREQUENCY (Hz)
1920 G19
Current Noise Density
vs Frequency
1000
VS = ±15V
TA = 25°C
Gain vs Frequency
60
G = 1000
50
G = 100
40
30
G = 10
20
10
G=1
0
–10 VS = ± 15V
TA = 25°C
– 20
0.01 0.1
1
10
FREQUENCY (kHz)
100 1000
1920 G17
0.1Hz to 10Hz Noise Voltage,
G=1
VS = ±15V
TA = 25°C
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
1920 G20
0.1Hz to 10Hz Current Noise
VS = ±15V
TA = 25°C
100
RS
10
1
10
100
FREQUENCY (Hz)
1000
1920 G22
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
1920 G23
Supply Current vs Supply Voltage
1.50
1.25
85°C
1.00
25°C
– 40°C
0.75
0.50
0
5
10
15
SUPPLY VOLTAGE (± V)
20
1920 G18
0.1Hz to 10Hz Noise Voltage, RTI
G = 1000
VS = ±15V
TA = 25°C
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
1920 G21
Short-Circuit Current vs Time
50
VS = ±15V
40
30
TA = – 40°C
20
TA = 25°C
10
TA = 85°C
0
– 10
TA = 85°C
– 20
– 30
TA = – 40°C
TA = 25°C
– 40
– 50
0
1
2
3
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
1920 G24
5
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