Interface RS232/RS562 Transceivers

LTM2882 - Dual Isolated RS232 uModule Transceiver + Power

LTC2804 - 1.8V to 5.5V RS-232 Single and Dual Transceivers

Features

  • 1.8V to 5.5V Supply Voltage
  • Single and Dual Transceivers
  • High-Speed Operation
    1Mbps for 250pF/3kΩ Load (LTC2802, LTC2804)
    250kbps for 1nF/3kΩ Load
    100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load
  • Low-Power 1μA Shutdown and 15μA Receivers- Active Modes
  • No Damage or Latchup to ±10kV ESD on RS-232 Interface
  • Logic Supply Pin for Easy Level-Shifting to UART or Microprocessor
  • Low-Latency Output Enable Allows Line Sharing and Half-Duplex Operation
  • True RS-232 Compliant Output Levels
  • Small Footprint:
    LTC2801/LTC2802 4mm × 3mm DFN Package
    LTC2803/LTC2804 Narrow SSOP-16 and
    5mm × 3mm DFN Packages

Typical Application

LTC2804 Typical Application
LTC2804 Typical Application

Description

The LTC2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, NiCd or NiMH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply.

These parts are compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15μA current. In shutdown mode, current is further reduced to 1μA.

Packaging

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

DFN-16,SSOP-16

LTC2804 Package Drawing
LTC2804 Package Drawing
LTC2804 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2804CDHC DFN 16 C $2.79 $1.95 View
LTC2804CDHC#PBF DFN 16 C $2.79 $1.95 View
LTC2804CDHC#TR DFN 16 C $2.01 View
LTC2804CDHC#TRPBF DFN 16 C $2.01 View
LTC2804CGN-1 SSOP 16 C $2.79 $1.95 View
LTC2804CGN-1#PBF SSOP 16 C $2.79 $1.95 View
LTC2804CGN-1#TR SSOP 16 C $2.01 View
LTC2804CGN-1#TRPBF SSOP 16 C $2.01 View
LTC2804IDHC DFN 16 I $3.36 $2.35 View
LTC2804IDHC#PBF DFN 16 I $3.36 $2.35 View
LTC2804IDHC#TR DFN 16 I $2.41 View
LTC2804IDHC#TRPBF DFN 16 I $2.41 View
LTC2804IGN-1 SSOP 16 I $3.36 $2.35 View
LTC2804IGN-1#PBF SSOP 16 I $3.36 $2.35 View
LTC2804IGN-1#TR SSOP 16 I $2.41 View
LTC2804IGN-1#TRPBF SSOP 16 I $2.41 View
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* 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.

Part Number Description Price Documentation
DC827A-B LTC2804 RS232 demo board $50.00
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Click here to view our complete list of demo boards

Applications

  • Battery-Powered Systems
  • Computers and Consumer Electronics
  • Diagnostic Ports

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