LMH6715

Dual Wideband Video Op Amp

General Description

complementary bipolar process with National’s current feed-

back topology to produce a very high speed dual op amp.

The LMH6715 provides 400MHz small signal bandwidth at a

gain of +2V/V and 1300V/µs slew rate while consuming only

The LMH6715 offers exceptional video performance with its

0.02% and 0.02˚ differential gain and phase errors for NTSC

and PAL video signals while driving up to four back termi-

nated 75

Ω loads. The LMH6715 also offers a flat gain re-

sponse of 0.1dB to 100MHz and very low channel-to-

channel crosstalk of −70dB at 10MHz. Additionally, each

amplifier can deliver 70mA of output current. This level of

performance makes the LMH6715 an ideal dual op amp for

high density, broadcast quality video systems.

The LMH6715’s two very well matched amplifiers support a

number of applications such as differential line drivers and

receivers. In addition, the LMH6715 is well suited for Sallen

Key active filters in applications such as anti-aliasing filters

for high speed A/D converters. Its small 8-pin SOIC package,

low power requirement, low noise and distortion allow the

LMH6715 to serve portable RF applications such as IQ

channels.

Features

T

Ω, typical values unless specified.

n

Very low diff. gain, phase: 0.02%, 0.02˚

n

Wide bandwidth: 480MHz (A

+2V/V)

n

0.1dB gain flatness to 100MHz

n

Low power: 5.8mA/channel

n

−70dB channel-to-channel crosstalk (10MHz)

n

Fast slew rate: 1300V/µs

n

Unity gain stable

n

Improved replacement for CLC412

Applications

n

HDTV, NTSC & PAL video systems

n

Video switching and distribution

n

IQ amplifiers

n

Wideband active filters

n

Cable drivers

n

DC coupled single-to-differential conversions

Differential Gain & Phase with

Multiple Video Loads

20042908

Frequency Response vs. V

OUT

20042916

January 2003

© 2003 National Semiconductor Corporation

DS200429

www.national.com