Datasheet > LMH672

LMH672

更新时间： 2022-12-11 20:22:08

品牌	Logo	应用领域
美国国家半导体 - NSC		运算放大器
页数	文件大小	规格书
15页	594K
描述
Wideband Video Op Amp; Single, Single with Shutdown and Quad

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LMH672 数据手册

March 2003

LMH6714/6720/6722

Wideband Video Op Amp; Single, Single with Shutdown

and Quad

General Description

Features

n 400MHz (A_V= +2V/V, V_OUT= 500mV_PP) −3dB BW

n 250MHz (A_V= +2V/V, V_OUT= 2V_PP) -3dB BW

n 0.1dB gain flatness to 120MHz

The LMH6714/6720/6722 series combine National’s

™

VIP10 high speed complementary bipolar process with

National’s 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/µs slew

rate while consuming only 5.6mA from 5V supplies.

n Low power: 5.6mA

n TTL compatible shutdown pin (LMH6720)

n Very low diff. gain, phase: 0.01%, 0.01˚ (LMH6714)

n −58 HD2/ −70 HD3 at 20MHz

n Fast slew rate: 1800V/µs

n Low shutdown current: 500uA (LMH6720)

n 11ns turn on time (LMH6720)

n 7ns shutdown time (LMH6720)

n Unity gain stable

n Improved replacement for CLC400,401,402,404,406 and

446 (LMH6714)

The LMH6714/6720/6722 series offer exceptional video per-

formance with its 0.01% and 0.01˚ differential gain and

phase errors for NTSC and PAL video signals while driving a

back terminated 75Ω 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’s small packages (SOIC

n Improved replacement for CLC405 (LMH6720)

n Improved replacement for CLC415 (LMH6722)

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.

Applications

n HDTV, NTSC & PAL video systems

n Video switching and distribution

n Wideband active filters

n Cable drivers

n High speed multiplexer (LMH6720)

n Programmable gain amplifier (LMH6720)

Differential Gain and Phase vs. Number of Video

Loads (LMH6714)

Non-Inverting Small Signal Frequency Response

20056506

20056528

DS200565

www.national.com

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