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ISO721 单路 100Mbps 数字隔离器

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground, and interfering with or damaging sensitive circuitry.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly

ISO721 ISO721M ISO722 ISO722M
Number of Channels 1 1 1 1
Channel Configuration 1/0 1/0 1/0 1/0
Insulation Rating(VRMS) 2500 2500 2500 2500
Supply Voltage(s)(V) 3.3, 5 3.3, 5 3.3, 5 3.3, 5
Datarate(Mbps) 100 150 100 150
Input Noise Filter Yes None Yes None
Prop Delay(Max)(ns) 24 16 24 16
TTL/CMOS Input Threshold TTL CMOS TTL CMOS
Footprint ADuM1100 ADuM1100 ADuM1100 ADuM1100
Rating Catalog Catalog Catalog Catalog
Operating Temperature Range(°C) -40 to 125 -40 to 125 -40 to 125 -40 to 125
Approx. Price (US$) 1.40 | 1ku 1.45 | 1ku 1.40 | 1ku 1.45 | 1ku
Pin/Package 8SOIC, 8SOP 8SOIC 8SOIC 8SOIC
Thermal Shutdown No No No No
ISO721 特性
ISO721 芯片订购指南
器件 状态 温度 价格 封装 | 引脚 封装数量 | 封装载体 丝印标记
ISO721D ACTIVE -40 to 125 1.70 | 1ku SOIC (D) | 8 75 | TUBE ISO721
ISO721DG4 ACTIVE -40 to 125 1.70 | 1ku SOIC (D) | 8 75 | TUBE ISO721
ISO721DR ACTIVE -40 to 125 1.40 | 1ku SOIC (D) | 8 2500 | LARGE T&R ISO721
ISO721DRG4 ACTIVE -40 to 125 1.40 | 1ku SOIC (D) | 8 2500 | LARGE T&R ISO721
ISO721 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
ISO721D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ISO721D ISO721D
ISO721DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ISO721DG4 ISO721DG4
ISO721DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ISO721DR ISO721DR
ISO721DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ISO721DRG4 ISO721DRG4
ISO721 应用技术支持与电子电路设计开发资源下载
  1. ISO721 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器隔离器选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
  5. 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
  6. 接口选择指南 (Rev. D) (PDF 2994 KB)
  7. Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
  8. Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
  9. Isolated RS-485 Reference Design (PDF 80 KB)
  10. 无铅组件涂层的保存期评估 (PDF 1305 KB)
  11. Analog Signal Chain Guide (8.62 MB)
  12. Industrial Interface IC Solutions (101 KB)