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LTC1485, LTC1485CG, LTC1485CN8

Table of contents:
Info of LTC1485
Info of LTC1485CG
Info of LTC1485CN8

LTC1485, LTC1485CG, LTC1485CN8 Selling Leads, Datasheet

MFG:Linear Technology Category:Integrated Circuits (ICs) Package Cooled:SOP-8 D/C:DIP

LTC1485, LTC1485CG, LTC1485CN8 Datasheet download

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Part Number: LTC1485

Category: Integrated Circuits (ICs)

MFG: Linear Technology

Package Cooled: SOP-8

D/C: DIP

Description: IC TXRX DIFFERNTIAL BUS 8-DIP

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LTC1485 General Description

The LTC ^®1485 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common-mode range (12V to 7V). It also meets the requirements of RS422. The CMOS with Schottky design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.

The driver and receiver feature three-state outputs, with he driver outputs maintaining high impedance over the ntire common-mode range. Excessive power dissipation aused by bus contention or faults is prevented by a hermal shutdown circuit which forces the driver outputs nto a high impedance state. I/O pins are protected against ultiple ESD strikes of over ±10kV.

The receiver has a fail-safe feature which guarantees a igh output state when the inputs are left open.

Both AC and DC specifications are guaranteed from 40°C o 85°C and 4.75V to 5.25V supply voltage range.

LTC1485 Maximum Ratings

Supply Voltage (V_CC) ............................................. 12V
Control Input Voltages ............... 0.5V to V_CC + 0.5V
Control Input Currents ...................... 50mA to 50mA
Driver Input Voltages .................. 0.5V to V_CC + 0.5V
Driver Input Currents ........................ 25mA to 25mA
Driver Output Voltages ....................................... ±14V
Receiver Input Voltages ...................................... ±14V
Receiver Output Voltages ........... 0.5V to V_CC + 0.5V
Operating Temperature Range
LTC1485C............................................... 0°C to 70°C
LTC1485I ......................................... 40°C to 85°C
Storage Temperature Range .......... 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)............. 300°C

LTC1485 Features

`ESD Protection over ±10kV
`Low Power: I_CC = 1.8mA Typ
`28ns Typical Driver Propagation Delays with 4ns Skew
`Designed for RS485 or RS422 Applications
`Single 5V Supply
`7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus
`Thermal Shutdown Protection
`Power-Up/Down Glitch-Free Driver Outputs
`Driver Maintains High Impedance in Three-State or with the Power Off
`Combined Impedance of a Driver Output and Receiver Allows up to 32 Transceivers on the Bus
`60mV Typical Input Hysteresis
`Pin Compatible with the SN75176A, DS75176A, and SN75LBC176

LTC1485 Typical Application

· Low Power RS485/RS422 Transceiver
· Level Translator

LTC1485 Connection Diagram

LTC1485CN8 Parameters

Technical/Catalog Information	LTC1485CN8
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	LTC1485CN8 LTC1485CN8

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