Datasheet > LTC2851

LTC2851

更新时间： 2024-11-10 14:57:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
18页	275K
描述
3.3V 20Mbps RS485/RS422 收发器

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中文翻译

获取价格

数据手册

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LTC2851 数据手册

LTC2850/LTC2851/LTC2852

3.3V 20Mbps RS485/RS422

Transceivers

FEATURES

DESCRIPTION

The LTC^®2850, LTC2851 and LTC2852 are low power,

20Mbps RS485/RS422 transceivers operating on 3.3V

supplies.Thereceiverhasaone-eighthunitloadsupporting

upto256nodesperbus(C-,I-grade),andafailsafefeature

that guarantees a high output state under conditions of

floating or shorted inputs.

3.3V Supply Voltage

20Mbps Maximum Data Rate

No Damage or Latchup Up to ±±5ꢀV ꢁHM

ꢁigh Input Impedance Supports 256 Nodes

(C-, I-Grade)

Operation Up to ±25°C (ꢁ-Grade)

Guaranteed Failsafe Receiver Operation Over the

The driver maintains a high output impedance over the

entire common mode range when disabled or when the

supplyisremoved.Excessivepowerdissipationcausedby

bus contention or a fault is prevented by current limiting

all outputs and by thermal shutdown.

Entire Common Mode Range

Current Limited Drivers and Thermal Shutdown

Delayed Micropower Shutdown: 5µA Maximum

(C-, I-Grade)

Power Up/Down Glitch-Free Driver Outputs

Enhanced ESD protection allows these parts to withstand

up to 15kV (human body model) on the transceiver

interface pins without latchup or damage.

Low Operating Current: 370µA Typical in

Receive Mode

Compatible with TIA/EIA-485-A Specifications

Available in 8-Pin and 10-Pin 3mm × 3mm DFN,

PART NUMHER

LTC2850

DUPLEX

Half

PACKAGE

8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin

SO Packages

SO-8, MSOP-8, DFN-8

SO-14, MSOP-10, DFN-10

LTC2851

Full

LTC2852

Full

APPLICATIONS

L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of

Linear Technology Corporation. All other trademarks are the property of their respective owners.

Low Power RS485/RS422 Transceiver

Level Translator

Backplane Transceiver

TYPICAL APPLICATION

LTC2850 at 20Mbps Into 54Ω

LTC2850

RO1

CC1

RE1

DE1

DI1

GND1

2V/DIV

A-B

LTC2850

RO2

RE2

DE2

DI2

CC2

285012 TA01b

20ns/DIV

GND2

285012 TA01a

285012fe

For more information www.linear.com/LTC2850

12 3 4 5 6 7...18

中文翻译

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