50Mbps Full-Duplex RS-485/RS-422 Transceivers with High EFT Immunity

The MAX22507E/MAX22508E ESD-protected RS-485/RS-422 full duplex transceivers are optimized for high-speed communication up to 50Mbps. These transceivers feature integrated hot-swap protection and a fail-safe receiver, ensuring a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ). Additionally, a large receiver hysteresis improves noise rejection and signal integrity.

The MAX22507E/MAX22508E are designed to operate in harsh industrial environments and are optimized for robust communication in environments with high levels of electromagnetic interference (EMI).

The MAX22507E is available in a 10-pin µMAX package and the MAX22508E is available in an 8-pin SOIC package. µMAX is the Maxim-trademarked equivalent to the industry-standard MSOP package. Both transceivers operate over the -40°C to +125°C temperature range.

Applications

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

* High-Speed Operation Over Long Distances

* Up to 50Mbps Data Rate * 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 IEC 61000-4-2 Air-Gap ESD Protection * ±6kV IEC 61000-4-2 Contact Discharge ESD Protection * Withstands Over ±4kV EFT * Driver Outputs are Short-Circuit Protected

* Flexibility for Many Different Applications

* 3V to 5.5V Supply Range * Low 5µA (max) Shutdown Current (MAX22507E) * Allows up to 200 Transceivers on the Bus * Available in a 10-pin µMAX Package (MAX22507E) and 8-pin SOIC Package (MAX22508E) * -40°C to +125°C Operating Temperature Range