Datasheet
LT1228
6
1228fd
TYPICAL PERFORMANCE CHARACTERISTICS
Voltage Gain and Phase
vs Frequency, Gain = 20dB
–3dB Bandwidth vs Supply
Voltage, Gain = 10, R
L
= 100Ω
–3dB Bandwidth vs Supply
Voltage, Gain = 10, R
L
= 1k
Voltage Gain and Phase
vs Frequency, Gain = 40dB
–3dB Bandwidth vs Supply
Voltage, Gain = 100, R
L
= 100Ω
–3dB Bandwidth vs Supply
Voltage, Gain = 100, R
L
= 1k
Voltage Gain and Phase
vs Frequency, Gain = 6dB
–3dB Bandwidth vs Supply
Voltage, Gain = 2, R
L
= 100Ω
–3dB Bandwidth vs Supply
Voltage, Gain = 2, R
L
= 1k
Transconductance Amplifier, Pins 1, 6, 8
FREQUENCY (MHz)
0
VOLTAGE GAIN (dB)
2
4
6
8
0.1 10 100
LT1228 • TPC10
–2
1
7
5
3
1
–1
PHASE SHIFT (DEG)
180
90
0
45
135
225
PHASE
GAIN
V
S
= ±15V
R
L
= 100Ω
R
F
= 750Ω
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
40
100
120
12 16
LT1228 • TPC11
40 6 8 10 14 18
0
20
60
140
160
180
R
F
= 500Ω
80
PEAKING ≤ 0.5dB
PEAKING ≤ 5dB
R
F
= 750Ω
R
F
= 1k
R
F
= 2k
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
40
100
120
12 16
LT1228 • TPC12
40 6 8 10 14 18
0
20
60
140
160
180
80
PEAKING ≤ 0.5dB
PEAKING ≤ 5dB
R
F
= 750Ω
R
F
= 1k
R
F
= 2k
R
F
= 500Ω
FREQUENCY (MHz)
14
VOLTAGE GAIN (dB)
16
18
20
22
0.1 10 100
LT1228 • TPC13
12
1
21
19
17
15
13
PHASE SHIFT (DEG)
180
90
0
45
135
225
PHASE
GAIN
V
S
= ±15V
R
L
= 100Ω
R
F
= 750Ω
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
40
100
120
12 16
LT1228 • TPC14
40 6 8 10 14 18
0
20
60
140
160
180
R
F
= 500Ω
80
PEAKING ≤ 0.5dB
PEAKING ≤ 5dB
R
F
= 750Ω
R
F
= 1k
R
F
= 2k
R
F
= 250Ω
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
40
100
120
12 16
LT1228 • TPC15
40 6 8 10 14 18
0
20
60
140
160
180
R
F
= 500Ω
80
PEAKING ≤ 0.5dB
PEAKING ≤ 5dB
R
F
= 750Ω
R
F
= 1k
R
F
= 2k
R
F
= 250Ω
FREQUENCY (MHz)
34
VOLTAGE GAIN (dB)
36
38
40
42
0.1 10 100
LT1228 • TPC16
32
1
41
39
37
35
33
PHASE SHIFT (DEG)
180
90
0
45
135
225
PHASE
GAIN
V
S
= ±15V
R
L
= 100Ω
R
F
= 750Ω
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
4
10
12
12 16
LT1228 • TPC17
40 6 8 10 14 18
0
2
6
14
16
18
R
F
= 500Ω
8
R
F
= 1k
R
F
= 2k
SUPPLY VOLTAGE (±V)
2
–3dB BANDWIDTH (MHz)
4
10
12
12 16
LT1228 • TPC18
40 6 8 10 14 18
0
2
6
14
16
18
R
F
= 500Ω
8
R
F
= 1k
R
F
= 2k