DS34LV87TM

Overview

The DS34LV87TM is an enhanced CMOS quad differential line driver manufactured by Texas Instruments. It meets TIA/EIA-422-B and ITU-T V.11 standards, ensuring interoperability with existing 5V RS-422 networks while operating on a 3.0V to 3.6V supply voltage. The device features a maximum data rate of 30 Mb/s and a typical output differential voltage (VOD) of 2.6V under a 100Ω load. Static power consumption is limited to 100 μA at VCC. It includes TRI-STATE capability via dual enable inputs and provides ESD protection exceeding 7 kV on cable I/O pins.

Feature Summary

• Compliant with TIA/EIA-422-B and ITU-T V.11 specifications for reliable communication
• Low static current consumption suitable for battery-powered applications
• TRI-STATE outputs controlled by dual enable inputs to minimize power when inactive
• Enhanced electrostatic discharge protection on all driver inputs and outputs

Applications

• Battery-powered industrial communication systems
• High-speed serial data transmission links
• Interfacing LVTTL or LVCMOS logic devices to RS-422 buses

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation before procurement. The base model designation may correspond to different packaging configurations, such as tube or reel formats. Confirm that the selected variant matches the required environmental temperature range and RoHS compliance status for the intended deployment environment.

Selection Notes

Select this component when designing circuits requiring low-power RS-422 drivers compatible with 3.3V logic levels. Ensure the application benefits from the TRI-STATE functionality for bus management. Verify that the SOIC-16 package dimensions fit the available PCB footprint and that the thermal dissipation requirements are met within the specified operating temperature range.

Part Context

This device belongs to the DS34LV87T series of enhanced CMOS quad differential line drivers. It serves as a low-voltage alternative to standard 5V RS-422 drivers, offering reduced power consumption while maintaining signal integrity over long distances. The series is designed for robust performance in noisy industrial environments.

Replacement Considerations

The DS34LV87TM/NOPB is a direct replacement for the DS34LV87TM, differing primarily in lead-free packaging and RoHS compliance. Both variants share identical electrical characteristics and pinouts.