Analog Devices / Maxim Integrated MAX304x 5V 四通道 RS-485/RS-422 收发器
美信 MAX304x 5V 四通道 RS-485/RS-422 发送器被设计用于在平衡双绞线上进行数字式数据通信。所有发送器输出都使用人体模型进行保护，最高达 ±10kV。此外 MAX304x 可承受 ±4kV，符合 IEC 1000-4-4 Electrical Fast Transient/Burst Stressing 标准。MAX3040/MAX3043 (250kbps)和 MAX3041/MAX3044 (2.5Mbps)是限摆率发送器，能够将 EMI 减至最小并且降低由于不适当的电缆端接引发的反射，从而实现无差错传送。这些器件具备热插拔特性，在上电或热插过程中消除了数据电缆上的错误扰动。MAX3042B/MAX3045B 适用于高达 20Mbps 的数据传输速率，MAX3041/MAX3044 适用于 2.5Mbps，MAX3040/MAX3043 适用于 250kbps。
These devices features a hot-swap capability that eliminates false transitions on the data cable during power-up or hot insertion. The MAX3042B/MAX3045B are optimized for data transfer rates up to 20Mbps, the MAX3041/MAX3044 for data rates up to 2.5Mbps, and the MAX3040/MAX3043 for data rates up to 250kbps.
特性
- ESD Protection: ±10kV—human body model
- Single +5V operation
- Guaranteed device-to-device skew (MAX3040/MAX3041/MAX3043/MAX3044)
- Pin-compatible with 'SN75174, '26LS31C and LTC487
- Hot-swappable for telecom applications
- Up to 20Mbps data rate (MAX3042B/MAX3045B)
- Slew-rate limited (data rates at 2.5Mbps and 250kbps)
- 2nA Low-power shutdown mode
- 1mA Operating supply current
- ±4kV EFT Fast transient burst immunity per IEC 1000-4-4
- Level 2 surge immunity per IEC 1000-4-5, unshielded cable model
- Ultra-small 16-Pin TSSOP, 16-pin narrow SO, and wide 16-pin SO
应用
- Telecommunications equipment
- Industrial motor control
- Transmitter for ESD-sensitive applications
- Hand-held equipment
- Industrial PLCs
- Networking
发布日期: 2014-11-12
| 更新日期: 2023-04-18