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ADM242:  High Speed, +5V, 0.1 µF CMOS RS-232 200kBPS Transceiver with 2 Drivers, 2 Receivers, Shutdown and Enable Pins

Product Details


The ADM222, ADM232A, ADM242 are a family of high speed RS-232 line drivers/receivers offering transmission rates up to 200 kB/s. Operating from a single +5 V power supply, a highly efficient on-chip charge pump using small (0.1 µF) external capacitors allows RS-232 bipolar levels to be developed. Two RS-232 drivers and two RS-232 receivers are provided on each device.

The devices are fabricated on BiCMOS, an advanced mixed technology process which combines low power CMOS with high speed bipolar circuitry. This allows for transmission rates up to 200 kB/s yet minimizes the quiescent power supply current to under 5 mA.

The ADM232A is a pin-compatible, high speed upgrade for the AD232 and for the ADM232L. It is available in 16-pin DIP and in both narrow and wide surface mount (SOIC) packages.

The ADM222 contains an additional shutdown (SHDN) function which may be used to disable the device thereby reducing the supply current to 0.1 µA. During shutdown, all transmit/ receive functions are disabled. The ADM222 is available in 18-pin DIP and in a wide surface mount (SOIC) package.

The ADM242 combines both shutdown (SHDN) and enable (EN) functions. The shutdown function reduces the supply curent to 0.1 mA. During shutdown, the transmitters are disabled but the receivers continue to operate normally. The enable function allows the receiver outputs to be disabled thereby facilitating sharing a common bus. The ADM242 is available in 18-pin DIP and in a wide surface mount (SOIC) package.

FEATURES and BENEFITS

  • 200 kB/s Transmission Rate
  • Small (0.1 µF) Charge Pump Capacitors
  • Single 5 V Power Supply
  • Meets All EIA-232-E and V.28 Specifications
  • Two Drivers and Two Receivers
  • On-Board DC-DC Converters
  • ±9 V Output Swing with 5 V Supply
  • ±30 V Receiver Input Levels
  • Pin Compatible with MAX222/MAX232A/MAX242

Functional Block Diagram for ADM242

Documentation

Title Content Type File Type
ADM222/ADM232A/ADM242: High Speed, +5V, 0.1 F CMOS RS-232 Driver/Receivers Data Sheet  (Rev B, 11/2010) (pdf, 127 kB) Data Sheets PDF
Interface Primer  (doc, 38 kB)
... RS-232, RS-422, RS-423 and RS-485
Technical Articles DOC
EMC, CE Mark, IEC801... What's it all about?
... New devices to ease the job.
(Analog Dialogue, Vol. 30, No. 4)
Analog Dialogue HTML
Interface Parametric Search Product Selection Guide HTML
RS-232 Transceivers Applications Bulletin (Summer 2008)  (pdf, 196 kB) Solutions Bulletins PDF
RS-232 Products Brochure (Summer 2007)  (pdf, 593 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

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Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADM242 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM242AN Status: Last Time Buy 18 ld PDIP 18 Ind Tube, 20 - N  Material Info PCN/PDN Purchase
ADM242ANZ Status: Production 18 ld PDIP 18 Ind Tube, 20 - Y  Material Info PCN Purchase
ADM242AR Status: Production 18 ld SOIC - Wide 18 Ind Tube, 41 - N  Material Info PCN Purchase
ADM242AR-REEL Status: Production SOIC 300 MIL 18 Ind Reel, 1000 - N  Material Info PCN Purchase
ADM242ARZ Status: Production 18 ld SOIC - Wide 18 Ind Tube, 41 - Y  Material Info PCN Purchase
ADM242ARZ-REEL Status: Production 18 ld SOIC - Wide 18 Ind Reel, 1000 - Y  Material Info PCN Purchase
Price Table Help

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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ezLINX™ iCoupler® Isolated Interface Development Environment
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EZLINX-IIIDE-EBZ Status: Production iCoupler® Isolated Interface Development Environment Evaluation Board $149.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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