XR33155

XR33152/XR33155/XR33156/XR33158 ±60V Fault Tolerant 3.0V to 5.5V RS-485/RS-422 Transceivers Description The XR33152, XR33155, XR33156 and XR33158 (XR3315x) family of high performance RS-485/RS-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 ±60V and are protected against ESD events up to ±15kV HBM. An extended ±25V common mode operating range allows for more reliable operation in noisy environments. The XR3315x receivers include full fail-safe circuitry, guaranteeing a logic high receiver output when the receiver inputs are open, shorted or undriven. The XR33152/55 receiver input impedance is at least 120kΩ (1/10 unit load), allowing more than 320 devices on the bus. The XR33156/58 receiver input impedance is at least 30kΩ (1/2.5 unit load), allowing more than 80 devices on the bus. The drivers are protected by short circuit detection as well as ther...