Datasheet > LMV7272

LMV7272

更新时间： 2024-11-21 22:47:03

品牌	Logo	应用领域
美国国家半导体 - NSC		比较器
页数	文件大小	规格书
16页	491K
描述
Single & Dual, 1.8V Low Power Comparators with Rail-to-Rail Input

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LMV7272 数据手册

September 2003

LMV7271/LMV7275/LMV7272

Single & Dual, 1.8V Low Power Comparators with

Rail-to-Rail Input

General Description

Features

The LMV727X are rail-to-rail input low power comparators,

which are characterized at supply voltage 1.8V, 2.7V and

5.0V. They consume only 9uA supply current per channel

while achieving a 800ns propagation delay.

(V_S= 1.8V, T_A= 25˚C, Typical values unless specified).

n Single or Dual Supplies

n Ultra low supply current

n Low input bias current

n Low input offset current

n Low guaranteed V_OS

n Propagation delay

9µA per channel

10nA

200pA

4mV

The LMV7271/LMV7275 (single) are available in SC70 and

SOT23 packages. The LMV7272 (dual) is available in micro

SMD package. With these tiny packages, the PC board area

can be significantly reduced. They are ideal for low voltage,

low power and space critical designs.

880ns (20mV overdrive)

n Input common mode voltage range

n LMV7272 is available in micro SMD package

0.1V beyond rails

The LMV7271/LMV7272 both feature a push-pull output

stage which allows operation with minimum power consump-

tion when driving a load. The LMV7275 features an open

drain output stage that allows for wired-OR configurations.

The open drain output also offers the advantage of allowing

the output to be pulled to any voltage up to 5V, regardless of

the supply voltage of the LMV7275.

Applications

n Mobile communications

n Laptops and PDA’s

n Battery powered electronics

n General purpose low voltage applications

The LMV727X are built with National Semiconductor’s ad-

vance submicron silicon-gate BiCMOS process. They all

have bipolar inputs for improved noise performance and

CMOS outputs for rail-to-rail output swing.

Typical Circuit

Part Number Single/Dual Package

Output

Push/Pull

LMV7271

Single

SC70,

SOT23

LMV7272

LMV7275

Dual

micro SMD Push/Pull

Single

SC70,

Open Drain

SOT23

20064024

FIGURE 1. Threshold Detector

DS200640

www.national.com

12 3 4 5 6 7...16

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