ADM2486
2.5 kV Signal Isolated, High Speed (20 Mbps), Half Duplex RS-485 Transceiver
Top
Overview
Features and Benefits
- Half-duplex, isolated RS-485 transceiver
- PROFIBUS® compliant
- ANSI EIA/TIA 485-A and ISO 8482: 1987(E) compliant
- 20 Mbps data rate
- 5 V or 3 V operation (VDD1)
- High common-mode transient immunity: >25 kV/μs
- Isolated DE status output
- Receiver open-circuit, fail-safe design
- Thermal shutdown protection
- 50 nodes on bus
- Safety and regulatory approvals
- UL recognition—2500 Vrms for 1 minute per UL 1577
- CSA Component Acceptance Notice #5A
- IEC 609501 800 Vrms (basic), 400 Vrms (reinforced)
- VDE Certificate of Conformity
- DIN V VDE 0884-10 (VDE V 0884-10): 2006-12
- VIORM = 560 V peak
- Operating temperature range: −40°C to +85°C
- Wide body, 16-lead SOIC package
Product Details
The ADM2486 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E).
The device employs Analog Devices iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package. The logic side of the device is powered with either a 5 V or a 3 V supply, and the bus side uses an isolated 5 V supply.
The ADM2486 driver has an active-high enable feature. The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output port that imposes minimal loading on the bus when the driver is disabled or when VDD1 or VDD2 = 0 V. Also provided is an active-high receiver disable feature that causes the receive output to enter a high impedance state.
The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention may cause excessive power dissipation. The part is fully specified over the industrial temperature range and is available in a 16-lead, wide body SOIC package.
Applications
- Isolated RS-485/RS-422 interfaces
- PROFIBUS networks
- Industrial field networks
- Multipoint data transmission systems
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
-
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices7/3/2020
-
AN-1179: Junction Temperature Calculation for Analog Devices RS-485/RS-422, CAN, and LVDS/M-LVDS Transceivers3/1/2015
-
AN-960: RS-485/RS-422 Circuit Implementation Guide (Rev. 0)7/28/2008
-
AN-727: iCoupler® Isolation in RS-485 Applications (Rev. 0)11/1/2006
-
AN-740: iCoupler® Isolation in RS-232 Applications (Rev. A)11/1/2006
-
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev. A)11/1/2006
-
AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev. 0)11/1/2006
-
FAQs7/26/2017
-
Options and Solutions for Partitioning Isolated Power in Isolated RS-485 Nodes12/1/2021
-
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary12/10/2010
-
NAppkin Note: Lowering the Power of the ADuM524x12/10/2010
-
High-Performance Multichannel Power-Line Monitoring with Simultaneous-Sampling ADCs1/1/2007 Analog Dialogue
-
Digital Isolators protect RS-232, RS-485, and CAN Buses10/1/2005 Analog Dialogue
Tools & Simulations
IBIS Model
IBS
ADM2486 IBIS Model
210.44 K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADM2486BRW-REEL | Material Declaration | Reliability Data | 16-Lead SOIC Wide | |
| ADM2486BRWZ | Material Declaration | Reliability Data | 16-Lead SOIC Wide | |
| ADM2486BRWZ-REEL | Material Declaration | Reliability Data | 16-Lead SOIC Wide | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
ADM2486 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.