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LT1230

更新时间： 2024-11-21 22:55:47
品牌 Logo 应用领域
凌特 - Linear 放大器
页数 文件大小 规格书
12页 293K
描述
Dual and Quad 100MHz Current Feedback Amplifiers

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中文翻译

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LT1230 数据手册

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LT1229/LT1230  
Dual and Quad 100MHz  
Current Feedback Amplifiers  
U
DESCRIPTIO  
EATURE  
S
F
■
■
■
■
■
■
■
■
■
■
■
100MHz Bandwidth  
1000V/µs Slew Rate  
Low Cost  
The LT1229/LT1230 dual and quad 100MHz current feed-  
back amplifiers are designed for maximum performance  
in small packages. Using industry standard pinouts, the  
dual is available in the 8-pin miniDIP and the 8-pin SO  
package while the quad is in the 14-pin DIP and 14-pin SO.  
The amplifiers are designed to operate on almost any  
available supply voltage from 4V (±2V) to 30V (±15V).  
30mA Output Drive Current  
0.04% Differential Gain  
0.1° Differential Phase  
High Input Impedance: 25MΩ, 3pF  
Wide Supply Range: ±2V to ±15V  
Low Supply Current: 6mA Per Amplifier  
Inputs Common Mode to Within 1.5V of Supplies  
Outputs Swing Within 0.8V of Supplies  
These current feedback amplifiers have very high input  
impedance and make excellent buffer amplifiers. They  
maintain their wide bandwidth for almost all closed-loop  
voltage gains. The amplifiers drive over 30mA of output  
current and are optimized to drive low impedance loads,  
such as cables, with excellent linearity at high frequencies.  
O U  
PPLICATI  
S
A
■
■
■
■
Video Instrumentation Amplifiers  
Cable Drivers  
The LT1229/LT1230 are manufactured on Linear  
Technology’sproprietarycomplementarybipolarprocess.  
For a single amplifier like these see the LT1227 and for  
better DC accuracy see the LT1223.  
RGB Amplifiers  
Test Equipment Amplifiers  
U
O
TYPICAL APPLICATI  
Loop Through Amplifier Frequency  
Response  
Video Loop Through Amplifier  
10  
R
187Ω  
R
3.01k  
R
750Ω  
R
F2  
750Ω  
G2  
G1  
F1  
0
NORMAL SIGNAL  
–10  
–20  
–30  
–
–
1/2  
LT1229  
1/2  
LT1229  
V
OUT  
V
+
IN  
V
–
3.01k  
3.01k  
IN  
+
+
–40  
1% RESISTORS  
WORST CASE CMRR = 22dB  
TYPICALLY = 38dB  
COMMON-MODE SIGNAL  
12.1k  
12.1k  
–50  
–60  
V
R
= G (V  
+
– V  
F2  
–
)
IN  
OUT  
IN  
10 100  
1k 10k 100k 1M 10M 100M  
= R  
F1  
F2  
BNC INPUTS  
R
= (G – 1) R  
FREQUENCY (Hz)  
G1  
LT1229 • TA02  
R
G – 1  
HIGH INPUT RESISTANCE DOES NOT LOAD CABLE EVEN  
WHEN POWER IS OFF  
F2  
R
=
G2  
TRIM CMRR WITH R  
G1  
LT1229 • TA01  
1
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