鈩?/div>
high speed complementary bipolar process with
National鈥檚 current feedback topology to produce a very high
speed op amp. These amplifiers provide a 400MHz small
signal bandwidth at a gain of +2V/V and a 1800V/碌s slew
rate while consuming only 5.6mA from
鹵
5V supplies.
The LMH6714/6720/6722 series offer exceptional video per-
formance with its 0.01% and 0.01藲 differential gain and
phase errors for NTSC and PAL video signals while driving a
back terminated 75鈩?load. They also offer a flat gain re-
sponse of 0.1dB to 120MHz. Additionally, they can deliver
70mA continuous output current. This level of performance
makes them an ideal op amp for broadcast quality video
systems.
The LMH6714/6720/6722鈥檚 small packages (SOIC &
SOT23), low power requirement, low noise and distortion
allow the LMH6714/6720/6722 to serve portable RF applica-
tions. The high impedance state during shutdown makes the
LMH6720 suitable for use in multiplexing multiple high speed
signals onto a shared transmission line. The LMH6720 is
also ideal for portable applications where current draw can
be reduced with the shutdown function.
Features
400MHz (A
V
= +2V/V, V
OUT
= 500mV
PP
) 鈭?dB BW
250MHz (A
V
= +2V/V, V
OUT
= 2V
PP
) -3dB BW
0.1dB gain flatness to 120MHz
Low power: 5.6mA
TTL compatible shutdown pin (LMH6720)
Very low diff. gain, phase: 0.01%, 0.01藲 (LMH6714)
鈭?8 HD2/ 鈭?0 HD3 at 20MHz
Fast slew rate: 1800V/碌s
Low shutdown current: 500uA (LMH6720)
11ns turn on time (LMH6720)
7ns shutdown time (LMH6720)
Unity gain stable
Improved replacement for CLC400,401,402,404,406 and
446 (LMH6714)
n
Improved replacement for CLC405 (LMH6720)
n
Improved replacement for CLC415 (LMH6722)
n
n
n
n
n
n
n
n
n
n
n
n
n
Applications
n
n
n
n
n
n
HDTV, NTSC & PAL video systems
Video switching and distribution
Wideband active filters
Cable drivers
High speed multiplexer (LMH6720)
Programmable gain amplifier (LMH6720)
Non-Inverting Small Signal Frequency Response
Differential Gain and Phase vs. Number of Video
Loads (LMH6714)
20056506
20056528
漏 2003 National Semiconductor Corporation
DS200565
www.national.com