Overview
The ADM2687EBRIZ-RL7, produced by Analog Devices Inc., is a fully integrated 5 kV rms signal and power isolated RS-485 transceiver. This device is designed for high-speed communication on multipoint transmission lines and features ±15 kV ESD protection. It integrates Analog Devices' iCoupler® technology, combining a 3-channel isolator, a three-state differential line driver, a differential input receiver, and an isoPower® dc-to-dc converter into a single package. The transceiver is powered by a single 5 V or 3.3 V supply, providing a fully integrated signal and power isolated RS-485 solution.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Maximum Data Rate | - | - | - | 500 kbps | - | |
| Propagation Delay, Low to High (Driver) | tDPLH | 250 | 503 | 700 | ns | RL = 110 Ω, CL = 50 pF |
| Propagation Delay, Low to High (Receiver) | tRPLH | 94 | 110 | - | ns | CL = 15 pF |
| Propagation Delay, High to Low (Receiver) | tRPHL | 95 | 110 | - | ns | CL = 15 pF |
| Output Skew | tSKEW | - | 1 | 12 | ns | CL = 15 pF |
| Enable Time | tZL, tZH | - | - | 15 | ns | RL = 1 kΩ, CL = 15 pF |
| Disable Time | tLZ, tHZ | - | - | 15 | ns | RL = 1 kΩ, CL = 15 pF |
| Isolation Voltage | - | - | - | 5 kV rms | - | - |
| ESD Protection | - | - | - | ±15 kV | - | - |
| Operating Temperature Range | - | -40°C | - | +85°C | - | - |
| Package Type | - | - | - | 16-lead, wide-body SOIC | - | - |
Key Features
- 5 kV rms signal and power isolation, ensuring high reliability in noisy environments.
- ±15 kV ESD protection, enhancing robustness against electrostatic discharges.
- Integrated isoPower® dc-to-dc converter, eliminating the need for an external isolation block.
- Compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards for balanced transmission lines.
- Active high enable for the driver and active low receiver enable, allowing for precise control over the communication lines.
- Current limiting and thermal shutdown features to protect against output short circuits and excessive power dissipation.
- High-speed data transmission up to 500 kbps, suitable for multipoint data transmission systems.
- Single 5 V or 3.3 V supply, simplifying power management in the system).
Applications
- Industrial field networks, requiring robust and reliable communication solutions.
- Multipoint data transmission systems, where high-speed data transfer is essential.
- Isolated RS-485/RS-422 interfaces, ensuring signal integrity and isolation in noisy environments).
- Automotive and industrial automation systems, where high reliability and ESD protection are critical).
Q & A
- What is the maximum data rate supported by the ADM2687EBRIZ-RL7?
The ADM2687EBRIZ-RL7 supports a maximum data rate of 500 kbps).
- What is the isolation voltage of the ADM2687EBRIZ-RL7?
The isolation voltage is 5 kV rms).
- What level of ESD protection does the ADM2687EBRIZ-RL7 offer?
The device offers ±15 kV ESD protection).
- What is the operating temperature range of the ADM2687EBRIZ-RL7?
The operating temperature range is from -40°C to +85°C).
- What package type is the ADM2687EBRIZ-RL7 available in?
The device is available in a 16-lead, wide-body SOIC package).
- Does the ADM2687EBRIZ-RL7 require an external dc-to-dc isolation block?
No, it integrates an isoPower® dc-to-dc converter, eliminating the need for an external isolation block).
- What standards does the ADM2687EBRIZ-RL7 comply with?
The device complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards).
- What are the key protection features of the ADM2687EBRIZ-RL7?
The device features current limiting and thermal shutdown to protect against output short circuits and excessive power dissipation).
- Can the ADM2687EBRIZ-RL7 be used in multipoint data transmission systems?
Yes, it is suitable for high-speed communication on multipoint transmission lines).
- What is the power supply requirement for the ADM2687EBRIZ-RL7?
The device can be powered by a single 5 V or 3.3 V supply).
