LMV712

更新时间： 2024-11-20 22:47:03

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
14页	507K
描述
Low Power, Low Noise, High Output, RRIO Dual Operational Amplifier with Independent Shutdown

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LMV712 数据手册

February 2002

LMV712

Low Power, Low Noise, High Output, RRIO Dual

Operational Amplifier with Independent Shutdown

General Description

Features

The LMV712 duals are high performance BiCMOS opera-

tional amplifiers intended for applications requiring

Rail-to-Rail inputs combined with speed and low noise. They

offer a bandwidth of 5MHz and a slew rate of 5V/µs and can

handle capacitive loads of up to 200pF without oscillation.

(Typical Unless Otherwise Noted)

n 5 MHz GBP

n Slew rate 5 V/µs

n Low noise 20nV/

n Supply current 1.22mA/channel

The LMV712 offers two independent shutdown pins. This

feature allows disabling of each device separately and re-

duces the supply current to less than 1µA typical. The output

voltage rapidly ramps up smoothly with no glitch as the

amplifier comes out of the shutdown mode.

n V_OS3mV max.

n Low supply voltage 2.7V to 5V.

n Rail-to-Rail inputs and outputs.

n Unity gain stable.

n Small package: 10-Pin LLP, 10-Pin MSOP and 10-Bump

micro SMD

The LMV712 with the shutdown feature is offered in space

saving 10-Bump micro SMD and 10 pin Leadless Leadframe

Package (LLP) packages. It is also offered in 10 lead MSOP

package. These packages are designed to meet the de-

mands of small size, low power, and low cost required by

cellular phones and similar battery operated portable elec-

tronics.

n 1.5µA shutdown I_CC

n 2.2µs turn on

Applications

n Power amplifier control loop

n Cellular phones

n Portable equipment

n Wireless LAN

n Radio systems

n Cordless phones

Typical Application Circuit

Output Waveform vs. Shutdown

Pulse

10137034

P.A. Control Loop

10137030

DS101370

www.national.com

12 3 4 5 6 7...14

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