XR3070XED-F Datasheet | Exar

DESCRIPTION FEATURES The XR3070-78X family of high performance RS-485/ 422 devices are designed for improved performance in noisy industrial environments and increased tolerance to system faults. The analog bus pins can withstand direct shorts up to ±18V, and are protected against ESD events up to ±15k V. The differential high output driver delivers 10% higher SNR than standard RS-485/422 devices, affording additional noise margin or extended cable lengths. The receivers include full fail-safe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are open, shorted, or undriven. The receiver input impedance is at minimum 96k W (1/8 unit load), allowing up to 256 devices on the bus while preserving the full signal margin. The drivers are protected by short circuit detection as well as thermal shutdown, and maintain high impedance in shutdown or when powered off. The XR307075X drivers are slew limited for reduced EMI and errorfree munication over long or unterminated data cables. The devices with DE and RE pins include hot swap circuitry to prevent false transitions on the bus during powerup or live insertion, and can enter a 1n A low current shutdown mode for extreme power savings. - 10% Higher SNR (Signal-to-Noise Ratio) pared to other RS-485 devices (1.65V vs. 1.5V) - ±18V Fault Tolerance on Analog Bus pins - Robust ESD (Electro Static Discharge) Protection: ±15k V IEC 61000-4-2 Air Gap Discharge ± 8k V IEC 61000-4-2 Contact Discharge ±15k V Human Body Model ± 4k V Human Body Model on non-bus pins - +3.0V to +3.6V Operation (3.3V ± 10%) - 300μA Idle Current, 1n A Shutdown Current - Enhanced Receiver Fail-Safe Protection for Open, Shorted, or Terminated but Idle Data Lines - Hot-Swap Glitch Protection on DE and RE Pins - Driver Short Circuit Current Limit and Thermal Shutdown for Overload Protection - 1/8th Unit Load Allows up to 256 Devices on Bus - Operating Temperature Range: Industrial -40°C to 85°C Extended -40°C to 125°C - Industry Standard...