Quad RS422/RS485 line driver for 3.3V backplanes
It integrates four drivers with no receivers, making it a pure transmit-side interface IC for applications like industrial control backplanes, building automation, and telecom line cards where the bus voltage is limited to 3.3V nominal.
The supply range of 3V to 3.6V is the critical fit parameter: this part is not a 5V RS485 driver. If your existing backplane or controller runs on 3.3V, the AM26LV31CD is a direct match. At 3.3V nominal, the differential output voltage meets the RS422/RS485 minimum of 2V across the common-mode range, so it drives standard twisted-pair cabling without level-shifting. Designs migrating from 5V to 3.3V logic can use this part to eliminate an extra regulator or translation stage.
It is RoHS3 compliant. The base product number AM26LV31 covers multiple package and temperature variants, so the CD suffix (16-SOIC, 0°C to 70°C) is the ordering code for this specific configuration.