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 icon-recommended 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)

工具及仿真模型

IBIS模型

配套产品推荐

ADM2861E 配套产品

推荐 Precision Microcontroller

推荐 Single Channel A/D Converter

推荐 Step-Down (Buck) Regulator

设计资源

ADI始终把满足您最高可靠性水平的产品放在首要位置。我们通过在所有产品、工艺设计和制造过程中引入高质量和可靠性检查实践这一承诺。发运的产品实现“零缺陷”始终是我们的目标。

样片申请及购买

电脑版网站提供样片和购买功能
返回
查询库存

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。


价格表帮助

 

购买评估板 所示报价为单片价格
以上块评估板您均可以已通过 analog.com 获取。如超过单片的数量,请通过代理商进行购买。
所示报价为单片价格。所列的美国报价单仅供预算参考,指美元报价(每片美国离岸价),如有修改恕不另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。