LT6553_15 Datasheet, PDF (1/12 Pages) Linear Technology – 650MHz Gain of 2 Triple Video Amplifier

LT6553
650MHz Gain of 2
Triple Video Amplifier
FEATURES
s _{650MHz –3dB Small Signal Bandwidth}
s _{400MHz –3dB 2VP-P Large Signal Bandwidth}
s _{150MHz ±0.1dB Bandwidth}
s _{High Slew Rate: 2500V/µs}
s _{Fixed Gain of 2 Requires No External Resistors}
s _{75dB Channel Separation at 10MHz}
s _{50dB Channel Separation at 100MHz}
s _{–82dBc 2nd Harmonic Distortion at 10MHz, 2VP-P}
s _{–72dBc 3rd Harmonic Distortion at 10MHz, 2VP-P}
s _{Low Supply Current: 8mA per Amplifier}
s _{6ns 0.1% Settling Time for 2V Step}
s _{TTL Compatible Enable ISS ≤ 100µA when Disabled}
s _{Differential Gain of 0.022%, Differential}
Phase of 0.006°
s _{Wide Supply Range: ±2.25V (4.5V) to ±6V (12V)}
s _{Available in 16-Lead SSOP Package}
U
APPLICATIO S
s _{RGB Amplifiers}
s _{Coaxial Cable Drivers}
s _{LCD Projectors}
DESCRIPTIO
The LT^®6553 is a high-speed triple video amplifier with an
internally fixed gain of 2. The individual amplifiers are
optimized for performance with a double terminated 75Ω
video load and feature a 2V_P–P full signal bandwidth of
400MHz, making them ideal for driving very high-resolu-
tion video signals. Separate power supply pins for each
amplifier boost channel separation to 75dB, allowing the
LT6553 to excel in many high-speed applications.
While the performance of the LT6553 is optimized for dual
supply operation, it can also be used on a single supply as
small as 4.5V. Using dual 5V supplies, each amplifier
draws only 8mA. When disabled, the amplifiers draw less
than 100µA and the output pins become high impedance.
Furthermore, the amplifiers are capable of turning on in
less than 50ns, making them ideal for multiplexing and
portable applications.
The LT6553 is manufactured on Linear Technology’s
proprietary low voltage complementary bipolar process
and is available in the 16-lead SSOP package that fits in the
same PCB area as an SO-8 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Triple Video Line Driver
5V
1
16
2
LT6553
15
3
R_IN
75Ω
4
5
G_IN
75Ω
6
B_IN
75Ω
7
8
–5V
370Ω
+
–
370Ω
370Ω
370Ω
370Ω
–
+
370Ω
–
+
14 ^75Ω
13
–5V
12 ^75Ω
11
5V
10 ^75Ω
9 _–5V
75Ω
75Ω
75Ω
6553 TA01a
Large Signal Transient Response
1.5 _{VIN = 1VP–P}
V_S = ±5V
1.0 ^RL ^{= 15OΩ}
T_A = 25°C
0.5
0
–0.5
–1.0
–1.5
0 2 4 6 8 10 12 14 16 18 20
TIME (ns)
6553 TA01b
6553f
1