概览
优势和特点
- 5.7 kV rms isolated RS-485/RS-422 transceiver
- Low radiated emissions, integrated, isolated dc-to-dc converter
- Passes EN 55032 Class B with margin on a 2-layer PCB
- Cable invert smart feature
- Correct reversed cable connection on A, B, Y, and Z bus pins while maintaining full receiver fail-safe feature
- 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
- High speed 25 Mbps data rate (ADM2865E/ADM2867E)
- Low speed 500 kbps data rate for EMI control (ADM2861E/ADM2863E)
- Flexible power supplies
- Input VCC supply of 3 V to 5.5 V
- Logic VIO supply of 1.7 V to 5.5 V
- VSEL pin to select VISO supply of 5 V (VCC > 4.5 V) or 3.3 V
- PROFIBUS compliant for 5 V VISO
- Wide operating temperature range: −40°C to +105°C
- High common-mode transient immunity: 250 kV/μs
- Short-circuit, open-circuit, and floating input receiver fail-safe
- Supports 192 bus nodes (72 kΩ receiver input impedance)
- Full hot swap support (glitch free power-up/power-down)
- Safety and regulatory approvals (pending)
- CSA Component Acceptance Notice 5A, DIN V VDE V 0884-11, UL 1577, CQC11-471543-2012, IEC 61010-1
- Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)
- 28-lead, fine pitch SOIC_W package (10.15 mm × 10.05 mm) with >8.0 mm creepage and clearance
产品详情
The ADM2861E, ADM2863E, ADM2865E, and ADM2867E are 5.7 kV rms signal and power isolated RS-485 transceivers. These devices are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The devices pass radiated emissions testing to the EN 55032 Class B standard with margin on a 2-layer printed circuit board (PCB) using two small external 0402 ferrites on isolated power and ground pins. The device features an integrated, low electromagnetic interference (EMI), isolated dc-to-dc converter, which eliminates the need for an external isolated power supply. The isolation barrier provides immunity to system level electromagnetic compatibility (EMC) standards. The family of isolator devices features ±12 kV contact and ±15 kV air IEC61000-4-2 ESD protection on the RS-485 A, B, Y, and Z pins. The devices also features cable invert pins, allowing the user to quickly correct reversed cable connection on the A, B, Y, and Z bus pins while maintaining full receiver fail-safe performance.
Slew rate limited versions are available, which are optimized for low speed over long cable runs, and have a maximum data rate of 500 kbps. Half duplex and full duplex variants are available. The full duplex generics allow independent cable inversion of the driver and receiver for additional flexibility.
Applications
- Heating, ventilation, and air conditioning (HVAC) networks
- Industrial field buses
- Building automation
- Utility networks
- Energy meters
产品生命周期
推荐新设计使用
本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。
评估套件 (1)
参考资料
-
数字隔离器产品选型与资源指南2/7/2020
-
ADI：适合能源和太阳能应用的低EMI隔离式RS-4858/13/2021 -
紧凑安静：小型电气化解决方案5/19/2021
工具及仿真模型
IBIS模型
IBS
ADM2861E IBIS Model
442.45 K
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| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADM2861EBRNZ | 材料声明 | 质量和可靠性 | 28-Lead SOIC (Wide, Finer Pitch) | |
| ADM2861EBRNZ-RL7 | 材料声明 | 质量和可靠性 | 28-Lead SOIC (Wide, Finer Pitch) | |
| Wafer Fabrication Data |
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