LT1228(Rev_A) 查看數據表（PDF） - Linear Technology
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LT1228 Datasheet PDF : 20 Pages
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LT1228
TYPICAL PERFOR A CE CHARACTERISTICS Current Feedback Amplifier, Pins 1, 6, 8
Maximum Capacitive Load vs
Feedback Resistor
10k
1k
VS = ±5V
VS = ±15V
100
RL = 1k
10
PEAKING ≤ 5dB
GAIN = 2
1
0
1
2
3
FEEDBACK RESISTOR (kΩ)
LT1228 • TPC19
Input Common-Mode Limit vs
Temperature
V+
– 0.5
–1.0
V+ = 2V TO 15V
–1.5
–2.0
2.0
1.5
1.0
0.5
V–
–50 –25
V– = –2V TO –15V
0 25 50 75 100 125
TEMPERATURE (°C)
LT1228 • TPC22
Spot Noise Voltage and Current vs
Frequency
100
–in
10
en
+in
1
10
100
1k
10k
100k
FREQUENCY (Hz)
LT1228 • TPC25
Total Harmonic Distortion vs
Frequency
0.10
VS = ±15V
RL = 400Ω
RF = RG = 750Ω
0.01 VO = 7VRMS
VO = 1VRMS
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
LT1228 • TPC20
Output Saturation Voltage vs
Temperature
V+
– 0.5
–1.0
RL = ∞
±2V ≤ VS ≤ ±15V
1.0
0.5
V–
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1228 • TPC23
Power Supply Rejection vs
Frequency
80
VS = ±15V
RL = 100Ω
60
RF = RG = 750Ω
POSITIVE
40
NEGATIVE
20
0
10k
100k
1M
10M 100M
FREQUENCY (Hz)
LT1228 • TPC26
2nd and 3rd Harmonic
Distortion vs Frequency
–20
VS = ±15V
VO = 2VP–P
–30 RL = 100Ω
RF = 750Ω
AV = 10dB
2nd
–40
3rd
–50
– 60
–70
1
10
100
FREQUENCY (MHz)
LT1228 • TPC21
Output Short-Circuit Current vs
Temperature
70
60
50
40
30
–50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1228 • TPC24
Output Impedance vs
Frequency
100
VS = ±15V
10
1.0
RF = RG = 2k
0.1
RF = RG = 750Ω
0.01
0.001
10k
100k
1M
10M 100M
FREQUENCY (Hz)
LT1228 • TPC27
7
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