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LTC1487, LTC1487CN8, LTC1487CS

Table of contents:
Info of LTC1487
Info of LTC1487CN8
Info of LTC1487CS

LTC1487, LTC1487CN8, LTC1487CS Selling Leads, Datasheet

MFG:Linear Technology Category:Integrated Circuits (ICs) Package Cooled:DIP D/C:04+

LTC1487, LTC1487CN8, LTC1487CS Datasheet download

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Part Number: LTC1487CN8

Category: Integrated Circuits (ICs)

MFG: Linear Technology

Package Cooled: DIP

D/C: 04+

Description: IC TXRX RS485 LOW EMI LOPWR 8DIP

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LTC1487 General Description

The LTC 1487 is an ultra-low power differential line transceiver designed with high impedance inputs allowing up 256 transceivers to share a single bus. It meets the requirements of RS485 and RS422. The LTC1487 features output drivers with controlled slew rate, decreasing the EMI radiated from the RS485 lines, and improving signal fidelity with misterminated lines. The CMOS design offers significant power savings without sacrificing ruggedness against overload or ESD damage. Typical quiescent current is only 80mA while operating and 1mA in shutdown.

The driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire common-mode range. Excessive power dissipation caused by bus contention or faults is prevented by thermal shutdown circuit which forces the driver outputs into a high impedance state. The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open. I/O pins are protected against multiple ESD strikes of over ±10kV using the Human Body Model.

The LTC1487 is fully specified over the commercial temperature range and is available in 8-pin DIP and SO packages.

LTC1487 Maximum Ratings

Supply Voltage (VCC) ................................................. 12V
Control Input Voltage .....................  0.5V to VCC + 0.5V
Driver Input Voltage .......................  0.5V to VCC + 0.5V
Driver Output Voltage ............................................. ±14V
Receiver Input Voltage ........................................... ±14V
Receiver Output Voltage ................  0.5V to VCC + 0.5V
Operating Temperature Range ............. 0°C £ TA £ 70°C
Lead Temperature (Soldering, 10 sec)................. 300°C

LTC1487 Features

High Input Impedance: Up to 256 Transceivers on the Bus
Low Power: ICC = 120mA Max with Driver Disabled
ICC = 200mA Max with Driver Enabled, No Load
1mA Quiescent Current in Shutdown Mode
Controlled Slew Rate Driver for Reduced EMI
Single 5V Supply
ESD Protection to ±10kV On Receiver Inputs and Driver outputs
7V to 12V Common-Mode Range Permits ±7V Ground Difference Between Devices on the Data Line
Thermal Shutdown Protection
Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver
Driver Maintains High Impedance in Three-State or with the Power Off
Pin Compatible with the LTC485

LTC1487 Typical Application

Battery-Powered RS485/RS422 Applications
Low Power RS485/RS422 Transceiver
Level Translator

LTC1487 Connection Diagram

LTC1487CN8 Parameters

Technical/Catalog Information	LTC1487CN8
Vendor	Linear Technology
Category	Integrated Circuits (ICs)
Number of Drivers/Receivers	1/1
Type	Transceiver
Voltage - Supply	4.75 V ~ 5.25 V
Package / Case	8-DIP (300 mil)
Packaging	Tube
Protocol	RS422, RS485
Drawing Number	161; 05-08-1510; N; 8
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LTC1487CN8 LTC1487CN8

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