Key facts
- Brand
- Analog Devices
- Model
- ADM3485E
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2022-10-17
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Analog Devices ADM3485E EMC Compliant RS-485 Transceiver Protection Circuit Reference Design
The document presents Circuits from the Lab™ reference circuits engineered to solve analog and mixed-signal design challenges. It details three distinct EMC-compliant protection schemes designed specifically for the ADM3485E RS-485 transceiver to protect against electrostatic discharge (ESD), electrical fast transient (EFT), and surge events.
The text describes an evaluation board, EVAL-CN0313-SDPZ, which integrates three ADM3485E devices, each configured with a different protection topology. The schemes utilize components such as TVS diodes, Transient Voltage Suppressor/Transient Burst Unit (TBU), and Gas Discharge Tubes (GDT) to achieve varying levels of surge immunity up to 6 kV while maintaining standard ESD protection.
Analog Devices ADM3485E specifications
| Supply Voltage (VCC) | 3.3 V ± 0.3 V |
|---|---|
| Maximum Data Rate | 12 Mbps |
| ESD Protection | ±15 kV (human body model) |
| Operating Temperature Range | –40 °C to +85 °C |
| Shutdown Current (typical) | 0.002 µA |
All Analog Devices ADM3485E documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum data rate of the ADM3485E?
The device supports a maximum data rate of 12 Mbps.
How many nodes can be connected on the bus?
The transceiver can be used with up to 32 nodes on a bus.
What is the maximum data rate of the ADM3485E?
The device supports a maximum data rate of 12 Mbps.
How many nodes can be connected on the bus?
Up to 32 nodes can be connected on the bus.