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LTC1485

Features: `ESD Protection over ±10kV`Low Power: ICC = 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-...

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SeekIC No. : 004401635 Detail

LTC1485: Features: `ESD Protection over ±10kV`Low Power: ICC = 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-Mo...

LTC1485 Data Sheet

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Part Number:
LTC1485
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

`ESD Protection over ±10kV
`Low Power: ICC = 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


Application

· Low Power RS485/RS422 Transceiver
· Level Translator


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC) ............................................. 12V
Control Input Voltages ............... 0.5V to VCC + 0.5V
Control Input Currents ...................... 50mA to 50mA
Driver Input Voltages .................. 0.5V to VCC + 0.5V
Driver Input Currents ........................ 25mA to 25mA
Driver Output Voltages ....................................... ±14V
Receiver Input Voltages ...................................... ±14V
Receiver Output Voltages ........... 0.5V to VCC + 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


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 of LTC1485 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.




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