MAX13488EESA+T

The MAX13487E/MAX13488E +5V, half-duplex, ±15KV ESD-protected RS-485/RS-422-compatible transceivers feature one driver and one receiver. The MAX13487E/ MAX13488E include a hot-swap capability to eliminate false transitions on the bus during power-up or live insertion. The MAX13487E/MAX13488E feature Maxim’s proprietary AutoDirection control. This architecture makes the devices ideal for applications, such as isolated RS-485 ports, where the driver input is used in conjunction with the driver-enable signal to drive the differential bus. The MAX13487E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps. The MAX13488E driver slew rate is not limited, allowing transmit speeds up to 16Mbps. The MAX13487E/MAX13488E feature a 1/4 -unit load receiver input impedance, allowing up to 128 transceivers on the bus. These devices are intended for halfduplex communications. All driver outputs are protected to ±15KV ESD using the Human Body Model. The MAX13487E/MAX13488E are available in an 8-pin SO package. The devices operate over the extended - 40°C to +85°C temperature range.

Applications

• Isolated RS-485 Interfaces
• Utility Meters
• Industrial Controls
• Industrial Motor Drives
• Automated HVAC Systems

Key features

• AutoDirection Saves Space and BOM Cost
• AutoDirection Enables Driver Automatically on Transmission, Eliminating an Opto or Other Discrete Means of Isolation
• 8-Pin SO Package
• Robust Protection Features for Telecom, Industrial, and Isolated Applications
• Hot-Swap Capability to Eliminate False Transitions on the Bus During Power-Up or Live Insertion
• Extended ESD Protection for RS-485 I/O Pins (±15kV Human Body Model)
• Options Optimize Designs for Speed or Errorless Data Transmission
• Enhanced Slew-Rate Limiting Facilitates ErrorFree Data Transmission (MAX13487E)
• High-Speed Version (MAX13488E) Allows for Transmission Speeds Up to 16Mbps
• 1/4-Unit Load, Allowing Up to 128 Transceivers on the Bus