TIAM26LS31CDR

Overview

The AM26LS31CDR is a quadruple differential line driver designed for balanced transmission at data rates up to 10 Mbps. It implements the TIA/EIA-422-B and ITU V.11 standards, providing four independent drivers with complementary outputs and active-high/active-low enable inputs. This component is specifically engineered to drive long transmission lines in noisy environments while maintaining low power consumption and high output impedance during power-off conditions.

Why Choose This Part

This driver features TTL-compatible inputs and high-speed switching with a 4.75V to 5.25V supply range. The complementary output-enable inputs provide flexible control logic, while the high output impedance in the powered-down state prevents loading of the transmission line. Its 16-SOIC footprint offers a balance between space efficiency and ease of assembly for industrial PCBs.

Applications

Getting Started

To implement the AM26LS31CDR, ensure a 0.1uF decoupling capacitor is placed close to the VCC pin and terminate the transmission line with 100-120 ohms at the receiver end to prevent reflections. Engineers should verify that the common-mode voltage remains within standard RS-422 limits and utilize the complementary enable pins (G and /G) to manage driver activity. Prototyping can be performed using standard SOIC-16 to DIP adapter boards on a breadboard.

AM26LS31 Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider