LT1398 查看數據表（PDF） - Linear Technology
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LT1398 Datasheet PDF : 16 Pages
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LT1398/LT1399/LT1399HV
TYPICAL PERFOR A CE CHARACTERISTICS
Input Voltage Noise and Current
Noise vs Frequency
1000
100
– IN
+IN
10
EN
Output Impedance vs Frequency
100
RF = RG = 324Ω
RL = 50Ω
AV = +2
10 VS = ± 5V
1
0.1
Output Impedance (Disabled)
vs Frequency
100k
RF = 365Ω
AV = +1
VS = ± 5V
10k
1k
1
10 30 100 300 1k 3k 10k 30k 100k
FREQUENCY (Hz)
1398/1399 G10
Maximum Capacitive Load
vs Feedback Resistor
1000
100
10
1
300
RF = RG
AV = +2
VS = ± 5V
PEAKING ≤ 5dB
900 1500 2100 2700 3300
FEEDBACK RESISTANCE (Ω)
1398/1399 G13
Output Voltage Swing
vs Temperature
5
4
3
RL = 100k
RL = 150Ω
2
1
0
–1
–2
–3
RL = 100k RL = 150Ω
–4
–5
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
1398/1399 G16
0.01
10k
100k
1M
10M
FREQUENCY (Hz)
100M
1398/1399 G11
Capacitive Load
vs Output Series Resistor
40
RF = RG = 324Ω
VS = ± 5V
OVERSHOOT < 2%
30
20
10
0
10
100
1000
CAPACITIVE LOAD (pF)
1398/1399 G14
Enable Pin Current
vs Temperature
– 10
VS = ± 5V
– 20
– 30
EN = 0V
– 40
EN = –5V
– 50
– 60
– 70
– 80
– 50 – 25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
1398/1399 G17
100
100k
1M
10M
FREQUENCY (Hz)
100M
1398/1399 G12
Supply Current vs Supply Voltage
6
5
EN = V –
4
EN = 0V
3
2
1
0
01 2 3 4 5 6 7 8 9
SUPPLY VOLTAGE (± V)
1398/1399 G15
Positive Supply Current per
Amplifier vs Temperature
5.00
VS = ± 5V
4.75
EN = – 5V
4.50
EN = 0
4.25
4.00
3.75
3.50
3.25
3.00
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
1398/1399 G18
7
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