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ADM3251E:  Isolated Single Channel RS-232 Line Driver/Receiver

    SAFETY & REGULATORY COMPLIANCE
Product Status:   Production 

The ADM3251E is a high speed, 2.5 kV fully isolated, single- channel RS-232/V.28 transceiver device that operates from a single 5 V power supply. Due to the high ESD protection on the RIN and TOUT pins, the device is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently being plugged and unplugged.

The ADM3251E ...More

ADM3251E:  Isolated Single Channel RS-232 Line Driver/Receiver

Product Description

The ADM3251E is a high speed, 2.5 kV fully isolated, single- channel RS-232/V.28 transceiver device that operates from a single 5 V power supply. Due to the high ESD protection on the RIN and TOUT pins, the device is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently being plugged and unplugged.

The ADM3251E incorporates dual-channel digital isolators with isoPower™ integrated, isolated power. There is no requirement to use a separate isolated dc-to-dc converter. Chip-scale transformer iCoupler® technology from Analog Devices, Inc., is used both for the isolation of the logic signals as well as for the inte- grated dc-to-dc converter. The result is a total isolation solution.

The ADM3251E contains isoPower technology that uses high frequency switching elements to transfer power through thetransformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to Application Note AN-0971, Control of Radiated Emissions with isoPower Devices, for details on board layout considerations. The ADM3251E conforms to the EIA/TIA-232E and ITU-T V. 28 specifications and operates at data rates up to 460 kbps. Four external 0.1 μF charge pump capacitors are used for the voltage doubler/inverter, permitting operation from a single 5 V supply.

The ADM3251E is available in a 20-lead, wide body SOIC package and is specified over the −40°C to +85°C temperature range.

Applications

  • High noise data communications
  • Industrial communications
  • General-purpose RS-232 data links
  • Industrial/telecommunications diagnostic ports
  • Medical equipment

    • Chinese data sheet available
    • 2.5 kV fully isolated (power and data) RS-232 transceiver
    • isoPower integrated, isolated dc-to-dc converter
    • 460 kbps data rate
    • 1 Tx and 1 Rx
    • Meets EIA/TIA-232E specifications
    • ESD protection on RIN and TOUT pins
      ±8 kV: contact discharge
      ±15 kV: air gap discharge
    • 0.1 μF charge pump capacitors
    • High common-mode transient immunity: >25 kV/μs
    • Safety and regulatory approvals
      UL recognition
      2500 V rms for 1 minute per UL 1577
      VDE Certificate of Conformity (pending)
      DIN EN 60747-5-2 (VDE 0884 Teil 2): 2003-01
      CSA Component Acceptance Notice #5A (pending)
    • Operating temperature range: −40°C to +85°C
    • Wide body, 20-lead SOIC package

Functional Block Diagram for ADM3251E

Enter values and click on PowerMe to find power solutions for this IC. PowerMe launch of ADIsimPower Voltage Regulator Design Tool
(Nominal) For IC being powered
Available System Voltage V Operating Voltage Rail V Load Current A

Budgetary Price & Packaging   |   Samples   |   Check Inventory & Purchase

ADM3251E Model Options
Model Package Pins Temp.
Range		 Packing,
Qty		 Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM3251EARWZ Status: Production 20 ld SOIC - Wide 20 Ind Tube, 37 $3.50 $2.99 Y  Material Info PCN Purchase Sample
ADM3251EARWZ-REEL Status: Production 20 ld SOIC - Wide 20 Ind Reel, 1000 - $2.99 Y  Material Info PCN Purchase
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  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Packing, Qty
Indicates the packing option of the model (Tube, Reel, Tray, etc.) and the standard quantity in that packing option.

Price
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.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

View PCN/PDN
This is the list of Product Change Notifications (PCN) and Product Discontinuance Notifications (PDN) published on the web for this model. Click on the link to access PCN/PDN information. Online PCNs are available starting in 2009 and online PDNs are available starting in 2010. To obtain older PCNs or PDNs, contact your ADI Sales Rep. For more information on ADI's PCN/PDN process, please visit our PCN/PDN Information page.

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

ADM3251E Evaluation board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADM3251EEB1Z Status: Production Evaluation Board - EMI optimized 6-layer $75.00 Yes -
EVAL-ADM3251EEBZ Status: Production Evaluation Board - Simple 2-layer $40.00 Yes -

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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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