Overview
The ADM2587EBRWZ is a fully integrated signal and power isolated RS-485/RS-422 transceiver designed by Analog Devices Inc. This device is suitable for high-speed communication on multipoint transmission lines and features ±15 kV ESD protection on the RS-485 input/output pins. It includes an integrated isolated dc-to-dc power supply, eliminating the need for an external dc-to-dc isolation block. The transceiver complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards and supports both full and half-duplex operations.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 3.0 | - | 5.5 | V | - |
| Supply Current (ADM2587E, 500 kbps) | ICC | 72 | - | 125 | mA | VCC = 5 V, 100 Ω load between Y and Z |
| Supply Current (ADM2587E, 500 kbps) | ICC | 90 | - | 125 | mA | VCC = 3.3 V, 100 Ω load between Y and Z |
| Data Rate | - | - | - | 500 kbps | - | - |
| Propagation Delay (Low to High) | tDPLH | 250 | 503 | 700 | ns | RL = 54 Ω, CL1 = CL2 = 100 pF |
| Propagation Delay (High to Low) | tDPHL | 250 | 510 | 700 | ns | RL = 54 Ω, CL1 = CL2 = 100 pF |
| Operating Temperature Range | - | -40 | - | 85 | °C | - |
Key Features
- Signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection on RS-485 input/output pins.
- Integrated isolated dc-to-dc power supply, eliminating the need for an external dc-to-dc isolation block.
- Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards.
- Data rate of 500 kbps.
- Operates on 5 V or 3.3 V supply.
- Supports up to 256 nodes on one bus.
- Open- and short-circuit, fail-safe receiver inputs.
- High common-mode transient immunity: >25 kV/µs.
- Thermal shutdown protection.
- Safety and regulatory approvals including UL recognition and VDE certificates.
- Highly integrated, 20-lead, wide-body SOIC package.
Applications
- Isolated RS-485/RS-422 interfaces.
- Industrial field networks.
- Multipoint data transmission systems.
Q & A
- What is the primary function of the ADM2587EBRWZ?
The ADM2587EBRWZ is a fully integrated signal and power isolated RS-485/RS-422 transceiver designed for high-speed communication on multipoint transmission lines.
- What is the data rate of the ADM2587EBRWZ?
The data rate of the ADM2587EBRWZ is 500 kbps.
- What are the operating voltage ranges for the ADM2587EBRWZ?
The ADM2587EBRWZ operates on 3.0 V to 5.5 V supply.
- What kind of ESD protection does the ADM2587EBRWZ offer?
The ADM2587EBRWZ offers ±15 kV ESD protection on RS-485 input/output pins.
- What standards does the ADM2587EBRWZ comply with?
The ADM2587EBRWZ complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards.
- How many nodes can be connected on one bus using the ADM2587EBRWZ?
Up to 256 nodes can be connected on one bus.
- What is the operating temperature range of the ADM2587EBRWZ?
The operating temperature range is from -40°C to +85°C.
- Does the ADM2587EBRWZ have thermal shutdown protection?
- What is the package type of the ADM2587EBRWZ?
The ADM2587EBRWZ comes in a 20-lead, wide-body SOIC package.
- What are some of the safety and regulatory approvals for the ADM2587EBRWZ?
The ADM2587EBRWZ has UL recognition and VDE certificates of conformity.
