Datasheet > LT1280A

LT1280A

更新时间： 2023-12-20 18:44:23

品牌	Logo	应用领域
亚德诺 - ADI		驱动电容器驱动器
页数	文件大小	规格书
8页	228K
描述
采用 0.1μF 电容器的低功率 5V RS232 双通道驱动器 / 接收器

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中文翻译

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数据手册

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LT1280A 数据手册

LT1280A/LT1281A

Low Power 5V RS232

Dual Driver/Receiver with

0.1µF Capacitors

DESCRIPTIO

EATURE

The LT^®1280A/LT1281A are dual RS232 driver/receiver

pairs with integral charge pump to generate RS232 volt-

age levels from a single 5V supply. These circuits feature

rugged bipolar design to provide operating fault tolerance

and ESD protection unmatched by competing CMOS

designs. Using only 0.1µF external capacitors, these cir-

cuits consume only 40mW of power, and can operate to

120kbaud even while driving heavy capacitive loads. New

ESDstructuresonthechipallowtheLT1280A/LT1281Ato

survive multiple ±10kV strikes, eliminating the need for

costly TransZorbs^®on the RS232 line pins. The LT1280A/

LT1281A are fully compliant with EIA RS232 standards.

Driver outputs are protected from overload, and can be

shorted to ground or up to ±30V without damage. During

shutdown or power-off conditions, driver and receiver

outputs are in a high impedance state, allowing line

sharing.

■

10mA Max Supply Current

ESD Protection over ±10kV

Uses Small Capacitors: 0.1µF

120kBaud Operation for R_L= 3k, C_L= 2500pF

250kBaud Operation for R_L= 3k, C_L= 1000pF

Outputs Withstand ±30V Without Damage

CMOS Comparable Low Power: 40mW

Operates from a Single 5V Supply

Rugged Bipolar Design

Outputs Assume a High Impedance State When Off

or Powered Down

■

Meets All RS232 Specifications

Available With or Without Shutdown

Absolutely No Latch-up

Available in SO Package

O U

PPLICATI

The LT1281A is available in 16-pin DIP and SO packages.

The LT1280A is supplied in 18-pin DIP and SO packages

for applications which require shutdown.

■

Portable Computers

Battery-Powered Systems

Power Supply Generator

Terminals

, LTC and LT are registered trademarks of Linear Technology Corporation.

TransZorb is a registered trademark of General Instruments, GSI

Modems

TYPICAL APPLICATI

5V INPUT

Output Waveforms

0.1µF

OUT

0.1µF

LT1280A

DRIVER

OUTPUT

–

OUT

_L= 3k

_L= 2500pF

RS232 OUTPUT

RECEIVER

LOGIC

INPUTS

OUTPUT

C_L= 50pF

RS232 OUTPUT

RS232 INPUT

INPUT

LOGIC

OUTPUTS

RS232 INPUT

LT1280A • TA02

ON/OFF

LT1280A • TA01

12 3 4 5 6 7 8

中文翻译

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与LT1280A相关器件

型号	品牌	获取价格	描述	数据表
LT1280A_15	Linear	获取价格	Low Power 5V RS232 Dual Driver/Receiver with 0.1F Capacitors
LT1280AC	Linear	获取价格	Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
LT1280ACN	Linear	获取价格	Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
LT1280ACN#PBF	Linear	获取价格	LT1280A - Low Power 5V RS232 Dual Driver/Receiver with 0.1µF Capacitors; Package:
LT1280ACS	ETC	获取价格	Transceiver
LT1280ACSW	Linear	获取价格	Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
LT1280ACSW#PBF	Linear	获取价格	LT1280A - Low Power 5V RS232 Dual Driver/Receiver with 0.1µF Capacitors; Package:
LT1280ACSW#TR	Linear	获取价格	LT1280A - Low Power 5V RS232 Dual Driver/Receiver with 0.1µF Capacitors; Package:
LT1280ACSW#TRPBF	Linear	获取价格	LT1280A - Low Power 5V RS232 Dual Driver/Receiver with 0.1µF Capacitors; Package:
LT1280AI	Linear	获取价格	Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors

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