100Mbps Full-Duplex RS-485/RS-422 Transceiver for Long Cables

The MAX22502E full-duplex, ESD-protected, RS-485/RS-422 transceiver is optimized for high-speed (up to 100Mbps) communication over long cables.This transceiver features larger receiver hysteresis for high noise rejection and improved signal integrity. Integrated preemphasis circuitry extends the distance, and increases the data rate, of reliable communication by reducing inter-symbol interference (ISI) caused by long cables when supplied with 5V. Integrated hot-swap protection and a fail-safe receiver ensure a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ).

The MAX22502E is available in a 12-pin TDFN-EP (3mm x 3mm) package and operates over the -40°C to +125°C ambient temperature range.

Design Solution: RS-485: Overcome the Speed vs. Distance Challenge ›

Applications

* Backplane Busses * Encoder Interfaces * Field Bus Networks * Industrial Control Systems * Motion Control

* High-Speed Operation Over Long Distances

* Up to 100Mbps Data Rate

* Integrated Preemphasis Extends Cable Length

* High Receiver Sensitivity

* Wide Receiver Bandwidth

* Symmetrical Receiver Thresholds

* Integrated Protection Increases Robustness

* -15V to +15V Common Mode Range

* ±15kV ESD Protection (Human Body Model)

* ±7kV IEC61000-4-2 Air-Gap ESD Protection

* ±6kV IEC61000-4-2 Contact Discharge ESD Protection

* Driver Outputs are Short-Circuit Protected

* Flexibility for Many Different Applications

* 3V to 5.5V Supply Range

* Low Voltage Logic Supply Down to 1.6V

* Low 5µA (max) Shutdown Current

* Available in 12-pin TDFN (3mm x 3mm) Package

* -40°C to +125°C Operating Temperature Range