LT1395/LT1396/LT1397
Single/Dual/Quad 400MHz
Current Feedback Amplifier
FEATURES
s
s
s
s
s
s
s
s
DESCRIPTIO
400MHz Bandwidth on
鹵
5V (A
V
= 1)
350MHz Bandwidth on
鹵
5V (A
V
= 2, 鈥?)
0.1dB Gain Flatness: 100MHz (A
V
= 1, 2 and 鈥?)
High Slew Rate: 800V/碌s
Wide Supply Range:
鹵2V(4V)
to
鹵6V(12V)
80mA Output Current
Low Supply Current: 4.6mA/Amplifier
LT1395: SO-8 Package
LT1396: SO-8 and MSOP Packages
LT1397: SO-14 and SSOP-16 Packages
The LT
廬
1395/LT1396/LT1397 are single/dual/quad
400MHz current feedback amplifiers with an 800V/碌s slew
rate and the ability to drive up to 80mA of output current.
The LT1395/LT1396/LT1397 operate on all supplies from
a single 4V to
鹵6V.
At
鹵5V,
they draw 4.6mA of supply
current per amplifier.
The LT1395/LT1396/LT1397 are manufactured on Linear
Technology鈥檚 proprietary complementary bipolar process.
They have standard single/dual/quad pinouts and they are
optimized for use on supply voltages of
鹵5V.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Cable Drivers
Video Amplifiers
MUX Amplifiers
High Speed Portable Equipment
IF Amplifiers
TYPICAL APPLICATIO
R
G1
1.02k
R
F1
255鈩?/div>
Unity-Gain Video Loop-Through Amplifier
R
G2
63.4鈩?/div>
R
F2
255鈩?/div>
10
0
鈥?/div>
3.01k
V
IN 鈥?/div>
1/2
LT1396
鈥?/div>
3.01k V
IN+
1/2
LT1396
鈥?0
GAIN (dB)
V
OUT
鈥?0
鈥?0
鈥?0
COMMON MODE SIGNAL
鈥?0
鈥?0
100
+
0.67pF
+
1% RESISTORS
FOR A GAIN OF G:
V
OUT
= G (V
IN+
鈥?V
IN 鈥?/div>
)
R
F1
= R
F2
R
G1
= (G + 3) R
F2
R
R
G2
=
F2
G+3
TRIM CMRR WITH R
G1
1395/6/7 TA01
0.67pF
12.1k
12.1k
BNC INPUTS
HIGH INPUT RESISTANCE DOES NOT LOAD CABLE
EVEN WHEN POWER IS OFF
U
Loop-Through Amplifier
Frequency Response
NORMAL SIGNAL
1k
10k 100k
1M
10M 100M 1G
1395/6/7 TA02
U
U
FREQUENCY (Hz)
1
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