LMH6738 Very Wideband, Low Distortion Triple Op Amp
July 2004
LMH6738
Very Wideband, Low Distortion Triple Op Amp
General Description
The LMH6738 is a very wideband, DC coupled monolithic
operational amplifier designed specifically for ultra high reso-
lution video systems as well as wide dynamic range systems
requiring exceptional signal fidelity. Benefiting from Nation-
al鈥檚 current feedback architecture, the LMH6738 offers a
gain range of
鹵
1 to
鹵
10 while providing stable, operation
without external compensation, even at unity gain. At a gain
of +2 the LMH6738 supports ultra high resolution video
systems with a 400 MHz 2 V
PP
鈥? dB Bandwidth. With 12-bit
distortion levels through 30 MHz (R
L
= 100鈩?, 2.3 nV/
Hz input referred noise, the LMH6738 is the ideal driver or
buffer for high speed flash A/D and D/A converters. Wide
dynamic range systems such as radar and communication
receivers requiring a wideband amplifier offering exceptional
signal purity will find the LMH6738鈥檚 low input referred noise
and low harmonic distortion make it an attractive solution.
Features
n
n
n
n
n
n
n
750 MHz 鈭? dB small signal bandwidth (A
V
= +1)
鈭?5 dBc 3rd harmonic distortion (20 MHz)
2.3 nV/
Hz input noise voltage
3300 V/碌s slew rate
33 mA supply current (11.3 mA per op amp)
90 mA linear output current
0.02/0.01 Diff. Gain / Diff. Phase (R
L
= 150鈩?
Applications
n
n
n
n
n
n
n
n
n
RGB video driver
High resolution projectors
Flash A/D driver
D/A transimpedance buffer
Wide dynamic range IF amp
Radar/communication receivers
DDS post-amps
Wideband inverting summer
Line driver
Connection Diagram
16-Pin SSOP
20097510
Top View
VIP10
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2004 National Semiconductor Corporation
DS200975
www.national.com
next