Overview
The ADM2561EBRNZ-RL7 is a 3 kV rms signal and power isolated RS-485/RS-422 transceiver produced by Analog Devices Inc. This device is designed for balanced transmission lines and complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards. It features an integrated, isolated dc-to-dc converter and is known for its low radiated emissions, making it suitable for various industrial and commercial applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Supply Voltage (VCC) | VCC | 3.0 | 5.5 | V | ||
| Supply Voltage (VIO) | VIO | 1.7 | 5.5 | V | ||
| Maximum Data Rate | 500 kbps | kbps | For EMI control | |||
| Propagation Delay | tDPLH, tDPHL | 18 | 25 | ns | RL = 54 Ω, CL1 = CL2 = 100 pF | |
| Output Skew | tSKEW | 1.5 | 5 | ns | RL = 54 Ω, CL1 = CL2 = 100 pF | |
| Rise Time/Fall Time | tDR, tDF | 4.5 | 10 | ns | RL = 54 Ω | |
| Operating Temperature | T_A | -40 | 105 | °C | ||
| Package Type | 28-Lead SOIC_W_FP |
Key Features
- 3 kV rms signal and power isolation
- Integrated, isolated dc-to-dc converter
- Low radiated emissions, compliant with EN 55032 Class B standard
- Cable invert smart feature to correct reversed cable connections
- ESD protection on RS-485 A, B, Y, and Z pins (≥±12 kV IEC61000-4-2 contact discharge, ≥±15 kV IEC61000-4-2 air discharge)
- Flexible power supplies (3.0 V ≤ VCC ≤ 5.5 V, 1.7 V ≤ VIO ≤ 5.5 V)
- High-speed data rate of up to 25 Mbps for certain models (ADM2565E/ADM2567E)
Applications
- Heating, ventilation, and air conditioning (HVAC) networks
- Industrial field buses
- Building automation
- Utility networks
- Energy meters
Q & A
- What is the maximum data rate of the ADM2561EBRNZ-RL7?
The maximum data rate for the ADM2561EBRNZ-RL7 is 500 kbps for EMI control, but other models in the series can reach up to 25 Mbps. - What is the operating temperature range of the ADM2561EBRNZ-RL7?
The operating temperature range is from -40°C to +105°C. - Does the ADM2561EBRNZ-RL7 have ESD protection?
Yes, it has ESD protection on RS-485 A, B, Y, and Z pins (≥±12 kV IEC61000-4-2 contact discharge, ≥±15 kV IEC61000-4-2 air discharge). - What package type does the ADM2561EBRNZ-RL7 come in?
The ADM2561EBRNZ-RL7 comes in a 28-Lead SOIC_W_FP package. - Is the ADM2561EBRNZ-RL7 compliant with any specific standards?
Yes, it complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards, and also passes EN 55032 Class B radiated emissions testing. - What is the purpose of the integrated dc-to-dc converter in the ADM2561EBRNZ-RL7?
The integrated dc-to-dc converter provides isolated power, reducing the need for external components and enhancing the overall isolation and safety of the device. - Can the ADM2561EBRNZ-RL7 correct reversed cable connections?
Yes, it features a cable invert smart feature that corrects reversed cable connections on A, B, Y, and Z bus pins while maintaining full receiver fail-safe functionality. - What are some common applications of the ADM2561EBRNZ-RL7?
Common applications include HVAC networks, industrial field buses, building automation, utility networks, and energy meters. - What is the propagation delay of the ADM2561EBRNZ-RL7?
The propagation delay (tDPLH, tDPHL) is between 18 ns and 25 ns with RL = 54 Ω and CL1 = CL2 = 100 pF. - Does the ADM2561EBRNZ-RL7 support high-speed data transmission?
While the ADM2561EBRNZ-RL7 itself supports up to 500 kbps, other models in the series (ADM2565E/ADM2567E) can support data rates up to 25 Mbps.
