OBSOLETE
LMH6718
www.ti.com
SNOSA07G –MAY 2002–REVISED APRIL 2013
LMH6718 Dual, High Output, Selectable Gain Buffer
Check for Samples: LMH6718
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FEATURES
DESCRIPTION
The LMH6718 is a dual, low cost high speed
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200mA Output Current
(130MHz) buffer which features user selectable gains
of +2, +1, and -1V/V. The LMH6718 also has a new
output stage that delivers high output drive current
(200mA), but consumes minimal quiescent supply
current (2.6mA/Amp) from a ±5V supply. Its current
feedback architecture, fabricated in an advanced
complementary bipolar process, maintains consistent
performance over a wide range of signal levels, and
has a linear phase response up to one half of the -
3dB frequency.
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.04%, .03° Differential Gain, Phase
5.2mA Supply Current for 2 Amplifiers
130MHz Bandwidth (AV = +2)
−88/−98dBc HD2/HD3 (1MHz)
16ns Settling to 0.05%
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600V/µs Slew Rate
Nominal Supply Range ±2.5V to ±6V
Improved Replacement for CLC5632
The LMH6718 offers 0.1dB gain flatness to 30MHz
and differential gain and phase errors of .04% and
.03°. These features are ideal for professional and
consumer video applications.
APPLICATIONS
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Video Line Driver
Coaxial Cable Driver
Twisted Pair Driver
The LMH6718 offers superior dynamic performance
with a 130MHz small-signal bandwidth, 600V/μs slew
rate and 4.2ns rise/fall times (2VSTEP). The
combination of low quiescent current, high output
current drive, and high speed performance makes the
LMH6718 well suited for many battery powered
personal communication/computing systems. The
ability to drive low impedance, high capacitive loads,
makes the LMH6718 ideal for single ended cable
applications. It also drives low impedance loads with
minimum distortion. The LMH6718 will drive a 100Ω
load with only −84/−84dBc second/third harmonic
distortion (AV = +2, VOUT = 2VPP, f = 1MHz). It is also
optimized for driving high currents into single-ended
transformers and coils. When driving the input of high
resolution A/D converters, the LMH6718 provides
excellent -88/-98dBc second/third harmonic distortion
(AV = +2, VOUT = 2VPP, f = 1MHz, RL = 1kΩ) and fast
settling time.
Transformer/Coil Driver
High Capacitive Load Driver
Portable/Battery Powered Applications
A/D Driver
I/Q Channel Amplifier
The
Instruments’s
process.
LMH6718
is
fabricated
using
Texas
bipolar
VIP10™
complimentary
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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VIP10 is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2002–2013, Texas Instruments Incorporated