Datasheet > LTC2862A-2

LTC2862A-2

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
22页	478K
描述
Â±60V Fault Protected 3V to 5.5V RS485/RS422 Transceiver with Level 4 IEC ESD

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LTC2862A-2 数据手册

LTC2862A

±±60V FaulVꢀPolecledV30VloV5.50V

RS485/RS422VTPFnsceivePV

wilhVLeveuV4VIECVESD

FeaTures

DescripTion

TheLTC^®2862Aisalowpower,20Mbpsor250kbpsRS485/

RS422 transceiver operating on 3V to 5.5V supplies with

60V overvoltage fault protection on the interface pins

during all modes of operation, including power-down.

Improvements were made to the LTC2862 for greater ro-

bustness and signal integrity: 40kV HBM and Level 4 IEC

ESD protection on the interface pins; increased resistance

toelectricaloverstress;increasedreceivernoiseimmunity;

additional receiver noise filtering on the LTC2862A-2; and

an improved failsafe function optimized for high speed in

the LTC2862A-1 and noise rejection in the LTC2862A-2.

Low EMI slew rate limited data transmission is available

inthe250kbpsLTC2862A-2option,whiletheLTC2862A-1

operates to 20Mbps.

Protected from Overvoltage Line Faults to ±±6V

3V to 5.5V Supply Voltage

26Mbps or Low EMI 256kbps Data Rate

±46kV ꢀHM ESD Interface Pinsꢁ ±ꢂ5kV Other Pins

Enhanced Receiver and Failsafe Noise Immunity

IEC Level 4 ESD and EFT on Interface Pins

Extended Common Mode Range: ±25V

Guaranteed Failsafe Receiver Operation

High Input Impedance Supports 224 Nodes

MP-Grade Option Available (–55°C to 125°C)

Fully Balanced Differential Receiver Thresholds for

Low Duty Cycle Distortion

Current Limited Drivers and Thermal Shutdown

Compliant with TIA/EIA-485-A

Pin Compatible with LTC2862 and LT^®1785

Available in DFN and Leaded Packages

Extended 25V input common mode range and full fail-

safe operation improve data communication reliability in

electrically noisy environments and in the presence of

large ground loop voltages.

applicaTions

Supervisory Control and Data Acquisition (SCADA)

proDucT selecTion GuiDe

Industrial Control and Instrumentation Networks

Automotive and Transportation Electronics

MAX DATA

PART NUMHER

LTC2862A-1

LTC2862A-2

DUPLEX

HALF

ENAHLES

YES

RATE (bps)

Building Automation, Security Systems and HVAC

20M

Medical Equipment

Lighting and Sound System Control

HALF

YES

250k

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

Analog Devices, Inc.. All other trademarks are the property of their respective owners.

Typical applicaTion

LTC28±2A-ꢂ Receiving ꢂ6Mbps ±266mV Differential

Signal with ꢂMꢀz ±25V Common Mode Sweep

RS485 Link With Large Ground Loop Voltage

LTC2862A

A,B

50V/DIV

CC2

CC1

RO1

RE1

DE1

RO2

RE2

DE2

A–B

0.5V/DIV

DI1

DI2

V GROUND LOOP

≤25V PEAK

5V/DIV

2862A TA01a

GND1

GND2

2862A TA01b

100ns/DIV

2862af

For more information www.linear.com/LTC2862A

12 3 4 5 6 7...22

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LTC2862CDD-1#PBF	Linear	LTC2862 - ±60V Fault Protected 3V to 5.5V RS4	获取价格
LTC2862HDD-1#PBF	Linear	LTC2862 - ±60V Fault Protected 3V to 5.5V RS4	获取价格
LTC2862HS8-1#PBF	Linear	LTC2862 - ±60V Fault Protected 3V to 5.5V RS4	获取价格
LTC2862I	Linear Systems	±60V Fault Protected 3V to 5.5V RS485/RS422	获取价格
LTC2862IDD-1#PBF	Linear	LTC2862 - ±60V Fault Protected 3V to 5.5V RS4	获取价格
LTC2862IDD-2#PBF	Linear	LTC2862 - ±60V Fault Protected 3V to 5.5V RS4	获取价格

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