Interface RS232/RS562 Transceivers

LTM2882 - Dual Isolated RS232 uModule Transceiver + Power

LTC1385 - 3.3V Low Power EIA/TIA-562 Transceiver

Features

  • Operates from a Single 3.3V Supply
  • Low Supply Current: ICC = 200µA
  • ICC = 35µA in Driver Disable Mode
  • ICC = 0.2µA in Shutdown Mode
  • ESD Protection Over ±10kV
  • Uses Small Capacitors: 0.1µF
  • Operates to 120kBaud
  • Output Overvoltage Does Not Force Current Back into Supplies
  • EIA/TIA-562 I/O Lines Can Be Forced to ±25V Without Damage
  • Pin Compatible with LT 1180A

Typical Application

LTC1385 Typical Application
LTC1385 Typical Application

Description

The LTC®1385 is an ultra-low power, 2-driver/2-receiver EIA / TIA-562 transceiver which operates from a single 3.3V supply. The charge pump requires only four spacesaving 0.1µF capacitors.

The transceiver operates in one of three modes: Normal, Driver Disable or Shutdown. In the Normal mode, ICC is only 200µA in the unloaded condition. In the Driver Disable mode, the charge pump is turned off, the driver outputs are forced into three-state, both receivers are kept active, and ICC drops to 35µA. In the Shutdown mode, everything is turned off and ICC drops to 0.2µA.

The LTC1385 is fully compliant with all data rate and overvoltage EIA/ TIA-562 specifications. The transceiver can operate up to 120kbaud with a 1000pF, 3k Ohm load. Both driver outputs and receiver inputs can be forced to ±25V without damage, and can survive multiple ±10kV ESD strikes.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LTC1385CG#PBF SSOP-20 G C 05-08-1640 (G20) Yes
LTC1385CG#TRPBF SSOP-20 G C 05-08-1640 (G20) Yes
LTC1385CN#PBF N-18 N C 05-08-1510 (N18) Yes
LTC1385CSW#PBF SW-18 SW C 05-08-1620 (SW18) Yes
LTC1385CSW#TRPBF SW-18 SW C 05-08-1620 (SW18) Yes
LTC1385IG#PBF SSOP-20 G I 05-08-1640 (G20) Yes
LTC1385IG#TRPBF SSOP-20 G I 05-08-1640 (G20) Yes
LTC1385IN#PBF N-18 N I 05-08-1510 (N18) Yes
LTC1385ISW#PBF SW-18 SW I 05-08-1620 (SW18) Yes
LTC1385ISW#TRPBF SW-18 SW I 05-08-1620 (SW18) Yes


LTC1385 Package Drawing
LTC1385 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LTC1385CG#PBF SSOP-20 C $4.85 $3.80 Yes
LTC1385CG#TRPBF SSOP-20 C $3.90 Yes
LTC1385CN#PBF N-18 C $4.35 $3.40 Yes
LTC1385CSW#PBF SW-18 C $4.35 $3.40 Yes
LTC1385CSW#TRPBF SW-18 C $3.50 Yes
LTC1385IG#PBF SSOP-20 I $5.60 $4.35 Yes
LTC1385IG#TRPBF SSOP-20 I $4.45 Yes
LTC1385IN#PBF N-18 I $5.00 $3.90 Yes
LTC1385ISW#PBF SW-18 I $5.00 $3.90 Yes
LTC1385ISW#TRPBF SW-18 I $4.00 Yes
Buy Now • Request Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Notebook Computers
  • Palmtop Computers

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