ISO7221A Dual Digital Isolator
The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input and output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and 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
|
ISO7220A |
ISO7220C |
ISO7220M |
ISO7221A |
ISO7221C |
ISO7221M |
| Number of Channels |
2 |
2 |
2 |
2 |
2 |
2 |
| Channel Configuration |
2/0 |
2/0 |
2/0 |
1/1 |
1/1 |
1/1 |
| Insulation Rating(VRMS) |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
| Supply Voltage(s)(V) |
3.3, 5 |
3.3, 5 |
3.3, 5 |
3.3, 5 |
3.3, 5 |
3.3, 5 |
| Datarate(Mbps) |
1 |
25 |
150 |
1 |
25 |
150 |
| Input Noise Filter |
Yes |
Yes |
None |
Yes |
Yes |
None |
| Prop Delay(Max)(ns) |
475 |
42 |
16 |
475 |
42 |
16 |
| TTL/CMOS Input Threshold |
TTL |
TTL |
CMOS |
TTL |
TTL |
CMOS |
| Footprint |
ADuM1200 |
ADuM1200 |
ADuM1200 |
ADuM1201 |
ADuM1201 |
ADuM1201 |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Operating Temperature Range(°C) |
-40 to 125 |
-40 to 125 |
-40 to 125 |
-40 to 125 |
-40 to 125 |
-40 to 125 |
| Approx. Price (US$) |
0.95 | 1ku |
1.20 | 1ku |
1.50 | 1ku |
0.95 | 1ku |
1.20 | 1ku |
1.35 | 1ku |
| Pin/Package |
8SOIC |
8SOIC |
8SOIC |
8SOIC |
8SOIC |
8SOIC |
| Thermal Shutdown |
No |
No |
No |
No |
No |
No |
ISO7221A 特性
- 1, 5, 25, and 150-Mbps Signaling Rate Options
- Low Channel-to-Channel Output Skew; 1 ns max
- Low Pulse-Width Distortion (PWD); 1 ns max
- Low Jitter Content; 1 ns Typ at 150 Mbps
- Typical 25-Year Life at Rated Voltage
(see app. note SLLA197 and )
- 4000-Vpeak Isolation, 560 Vpeak VIORM
- UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2),
IEC 61010-1, IEC 60950-1 and CSA Approved
- 50 kV/µs Typical Transient Immunity
- Operates with 3.3-V or 5-V Supplies
- 4 kV ESD Protection
- High Electromagnetic Immunity
- –40°C to 125°C Operating Range
- APPLICATIONS
- Industrial Fieldbus
- Modbus
- Profibus™
- DeviceNet Data Buses
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition
ISO7221A 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 |
| ISO7221AD |
ACTIVE |
-40 to 125 |
1.15 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
ISO7221A |
| ISO7221ADG4 |
ACTIVE |
-40 to 125 |
1.15 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
ISO7221A |
| ISO7221ADR |
ACTIVE |
-40 to 125 |
0.95 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
ISO7221A |
| ISO7221ADRG4 |
ACTIVE |
-40 to 125 |
0.95 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
ISO7221A |
ISO7221A 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 |
| ISO7221AD |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
ISO7221AD |
ISO7221AD |
| ISO7221ADG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
ISO7221ADG4 |
ISO7221ADG4 |
| ISO7221ADR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
ISO7221ADR |
ISO7221ADR |
| ISO7221ADRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
ISO7221ADRG4 |
ISO7221ADRG4 |
ISO7221A 应用技术支持与电子电路设计开发资源下载
- ISO7221A 数据资料 dataSheet 下载.PDF
- TI 德州仪器隔离器选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
- 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
- 接口选择指南 (Rev. D) (PDF 2994 KB)
- Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
- Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
- Isolated RS-485 Reference Design (PDF 80 KB)
- 无铅组件涂层的保存期评估 (PDF 1305 KB)
- Analog Signal Chain Guide (8.62 MB)
- Industrial Interface IC Solutions (101 KB)
ISO7221A 工具和软件
| 培训内容 |
型号 |
软件/工具类型 |
| ISO722X EVM 工作台 |
ISO722XEVM |
开发电路板/EVM |
