Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Isolation | 5000 V rms for 1 minute (UL 1577) |
| Data rate | 16 Mbps |
| Duplex | Configurable half duplex or full duplex |
| Supply | 3.3 V or 5 V |
| Bus loading | Up to 256 nodes |
| ESD protection | ±15 kV on RS-485 I/O pins |
| CMTI | >25 kV/µs |
| Creepage / clearance | Greater than 8 mm package spacing |
| Package | 16-lead SOIC_IC, RI-16-1 |
| Operating temperature | −40°C to +85°C |
Product Overview
ADM2682EBRIZ-RL7 is the 16 Mbps member of the ADM2682E/ADM2687E isolated RS-485 family. It integrates the digital isolation barrier, RS-485/RS-422 transceiver, and a 5 kV rms isoPower dc-to-dc converter in an enhanced-creepage 16-lead package.
The RI-16-1 package provides greater than 8 mm creepage and clearance, so mechanical layout around the isolation barrier is a primary selection issue. The part also supports up to 256 nodes and ±15 kV ESD protection on the bus pins.
Key Features
- 5 kV rms signal-and-power isolation.
- 16 Mbps ADM2682E speed grade.
- Enhanced-creepage SOIC_IC package with >8 mm spacing.
- Fail-safe receive behavior, thermal shutdown, and >25 kV/µs CMTI.
Functional Highlights
The 16 Mbps timing grade distinguishes ADM2682E from the related 500 kbps ADM2687E. High data rate places more emphasis on cable impedance, termination, and stub control.
Package creepage is only useful if PCB copper, test points, and routing preserve the same isolation boundary.
Application Fit
- High-speed isolated RS-485/RS-422 interfaces.
- Industrial field networks.
- Multipoint systems with elevated isolation-spacing requirements.
Design Considerations
- Verify 16 Mbps operation against cable length and the complete bus topology.
- Preserve the isolation barrier around the RI-16-1 package.
- Apply isoPower decoupling and emissions-control guidance.
- Choose half- or full-duplex wiring before assigning bus pins and termination.
Product Status
Manufacturer status: PRODUCTION
Analog Devices currently lists the ADM2682E family as PRODUCTION.
Related Engineering Resources
Alternative Candidates for Engineering Evaluation
| MPN | Manufacturer | Package |
|---|---|---|
| ADM2682EBRIZ | ADI | SOIC-16-300mil |
Candidate alternative parts require engineering verification before substitution. Electrical characteristics, pinout, package, qualification, and application requirements should be verified before use.
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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