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LT1228CS8 Datasheet(PDF) 20 Page - Linear Technology

Part # LT1228CS8
Description  100MHz Current Feedback Amplifier with DC Gain Control
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1228CS8 Datasheet(HTML) 20 Page - Linear Technology

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LT1228
1228fc
©LINEAR TECHNOLOGY CORPORATION 1994
LT 0107 REV C • PRINTED IN USA
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
RF AGC Amplifier (Leveling Loop)
Inverting Amplifier with DC Output Less Than 5mV
Amplitude Modulator
+
–
A3
LT1006
LT1228 • TA20
+
–
CFA
100
Ω
10k
RF INPUT
0.6VRMS to 1.3VRMS
25MHz
300
Ω
–15V
15V
+
–
gm
470
Ω
10
Ω
0.01
µF
10k
0.01
µF
15V
–15V
4pF
10k
100k
AMPLITUDE
ADJUST
10k
4.7k
–15V
LT1004
1.2V
10k
OUTPUT
2VP–P
1N4148’s
COUPLE THERMALLY
3
2
7
5
1
8
4
LT1228 • TA21
–
+
+
100
µF
–
+
R5
V –
gm
3
2
V+
7
5
4
1
8
6
VO
CFA
RF
1k
RG
1k
VS = ±5V, R5 = 3.6k
VS = ±15V, R5 = 13.6k
VOUT MUST BE LESS THAN
200mVP–P FOR LOW OUTPUT OFFSET
BW = 30Hz TO 20MHz
VIN
INCLUDES DC
LT1228 • TA22
–
+
1k
–
+
10k
–5V
gm
3
5V
7
5
4
1
8
6
VOUT
0dBm(230mV) AT
MODULATION = 0V
CFA
RF
750
Ω
RG
750
Ω
+
4.7
µF
MODULATION
INPUT
≤ 8VP–P
4.7
µF
CARRIER
INPUT
30mV
2
PART NUMBER
DESCRIPTION
COMMENTS
LT1227
140MHz Current Feedback Amplifier
1100V/
µs Slew Rate, 0.01% Differential Gain, 0.03% Differential Phase
LT1251/LT1256
40MHz Video Fader
Accurate Linear Gain Control:
±1% Typ, ±3% Max
LT1399
400MHz Current Feedback Amplifier
800V/
µs Slew Rate, 80mA Output Current
TYPICAL APPLICATIO S



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