LTC2857-2 20Mbps 和转换速率受限型 15kV RS485/RS422 收发器
LTC®2856-1、LTC2856-2、LTC2857-1、LTC2857-2、LTC2858-1 和 LTC2858-2 是低功率、RS485/RS422 收发器，采用 5V 工作电源，最大数据速率为 20Mbps 或 250kbps 以用于实现低 EMI)。接收器具有一个可在每根总线上支持多达 256 个节点的 1/8 单位负载 (C、I 等级) 和一种可在输入浮置或短路的条件下确保高输出状态的故障保险功能。
当被停用或电源被拿掉时，驱动器能够在整个共模范围内保持高输出阻抗。可通过对所有输出进行限流和利用热停机功能来防止因总线争用或故障而导致功耗过大。
增强型 ESD 防护使得这些器件能够在收发器接口引脚上承受 ±15kV HBM (人体模型)，而不会发生锁断或受损现象。
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LTC2857-2 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LTC2857CDD-1#PBF | DFN | 8 | C | $2.07 | $1.45 |
| LTC2857CDD-1#TRPBF | DFN | 8 | C | $0.00 | $1.51 |
| LTC2857CDD-2#PBF | DFN | 8 | C | $2.07 | $1.45 |
| LTC2857CDD-2#TRPBF | DFN | 8 | C | $0.00 | $1.51 |
| LTC2857CMS8-1#PBF | MSOP | 8 | C | $2.07 | $1.45 |
| LTC2857CMS8-1#TRPBF | MSOP | 8 | C | $0.00 | $1.51 |
| LTC2857CMS8-2#PBF | MSOP | 8 | C | $2.07 | $1.45 |
| LTC2857CMS8-2#TRPBF | MSOP | 8 | C | $0.00 | $1.51 |
| LTC2857HDD-1#PBF | DFN | 8 | H | $2.80 | $1.91 |
| LTC2857HDD-1#TRPBF | DFN | 8 | H | $1.97 | |
| LTC2857HDD-2#PBF | DFN | 8 | H | $2.80 | $1.91 |
| LTC2857HDD-2#TRPBF | DFN | 8 | H | $1.97 | |
| LTC2857HMS8-1#PBF | MSOP | 8 | H | $2.80 | $1.91 |
| LTC2857HMS8-1#TRPBF | MSOP | 8 | H | $1.97 | |
| LTC2857HMS8-2#PBF | MSOP | 8 | H | $2.80 | $1.91 |
| LTC2857HMS8-2#TRPBF | MSOP | 8 | H | $1.97 | |
| LTC2857IDD-1#PBF | DFN | 8 | I | $2.48 | $1.74 |
| LTC2857IDD-1#TRPBF | DFN | 8 | I | $0.00 | $1.80 |
| LTC2857IDD-2#PBF | DFN | 8 | I | $2.48 | $1.74 |
| LTC2857IDD-2#TRPBF | DFN | 8 | I | $0.00 | $1.80 |
| LTC2857IMS8-1#PBF | MSOP | 8 | I | $2.48 | $1.74 |
| LTC2857IMS8-1#TRPBF | MSOP | 8 | I | $0.00 | $1.80 |
| LTC2857IMS8-2#PBF | MSOP | 8 | I | $2.48 | $1.74 |
| LTC2857IMS8-2#TRPBF | MSOP | 8 | I | $0.00 | $1.80 |
LTC2857-2 数据手册及相关资料下载
- 数据手册 (英文) : LTC2856/LTC2857/LTC2858 - 20Mbps and Slew Rate Limited 15kV RS485/RS422 Transceivers.PDF
- 可靠性数据 : R521 Reliability Data .PDF
- 产品选型卡 : Ultra Rugged ±60V RS485 Transceivers.PDF
- 产品选型卡 : RS485 Quick Guide.PDF
