LMH6739_07 Datasheet, PDF (1/12 Pages) National Semiconductor (TI) – Very Wideband, Low Distortion Triple Video Buffer

December 10, 2007
LMH6739
Very Wideband, Low Distortion Triple Video Buffer
General Description
The LMH6739 is a very wideband, DC coupled monolithic se-
lectable gain buffer designed specifically for ultra high reso-
lution video systems as well as wide dynamic range systems
requiring exceptional signal fidelity. Benefiting from National's
current feedback architecture, the LMH6739 offers gains of
−1, 1 and 2. At a gain of +2 the LMH6739 supports ultra high
resolution video systems with a 400 MHz 2 V_PP
3 dB Bandwidth. With 12-bit distortion level through 30 MHz
(R_L = 100Ω), 2.3nV/√Hz input referred noise, the LMH6739
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 of-
fering exceptional signal purity will find the LMH6739’s low
input referred noise and low harmonic distortion make it an
attractive solution. The LMH6739 is offered in a space saving
SSOP package.
Features
■ ^{750 MHz −3 dB small signal bandwidth (A}_V ^{= +1)}
■ ^{−85 dBc 3rd harmonic distortion (20 MHz)}
■ ^{2.3 nV/ input noise voltage}
■ ^{3300 V/μs slew rate}
■ ^{32 mA supply current (10.6 mA per op amp)}
■ ^{90 mA linear output current}
■ ^{0.02/0.01 Diff. Gain/ Diff. Phase (R}_L ^{= 150Ω)}
■ ^{2mA shutdown current}
Applications
■ ^{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
Top View
20104110
Ordering Information
Package
16-Pin SSOP
Part Number
LMH6739MQ
LMH6739MQX
Package Marking
LH6739MQ
Transport Media
95 Units/Rail
2.5k Units Tape and Reel
VIP10™ is a trademark of National Semiconductor Corporation.
© 2007 National Semiconductor Corporation 201041
NSC Drawing
MQA16
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