DS3650MX

Overview

The DS3650MX is a quad line receiver manufactured by National Semiconductor, now part of Texas Instruments. It is designed for RS-422 and RS-485 communication protocols. The device features four independent receivers with TRI-STATE outputs. It operates within a standard voltage range and supports data transmission rates typical for these interface standards. The component is housed in a 16-pin Small Outline Package (SOP), specifically identified as PDSO16 with a plastic body. It includes internal protection mechanisms to handle input voltages beyond the supply rails, ensuring reliable operation in noisy industrial environments.

Feature Summary

• Provides four independent differential receivers for high-speed data acquisition
• Supports RS-422 and RS-485 communication protocol standards
• Features TRI-STATE outputs for bus sharing applications
• Includes input protection against excessive voltage levels

Applications

• Industrial control systems requiring robust serial communication
• Multi-drop networks utilizing RS-485 bus architectures
• Data acquisition modules interfacing with peripheral devices
• Telecommunications equipment signal reception stages

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor assets were acquired by Texas Instruments. Confirm the specific suffix 'MX' corresponds to the SOP-16 package variant. Check for RoHS compliance status, as older batches may not meet current environmental regulations. Ensure the source document explicitly lists the DS3650MX part number to avoid confusion with similar receiver models like the DS3652 or DS3654.

Selection Notes

Select this component when designing circuits that require multiple differential inputs for RS-422 or RS-485 interfaces. The quad configuration reduces board space compared to single receivers. Consider the SOP-16 package constraints for PCB layout. Verify that the operating temperature range meets the specific application environment requirements. Compare power consumption specifications against other available quad receivers if low-power design is critical.

Part Context

This component belongs to the family of high-performance line receivers developed by National Semiconductor. These devices are widely used in legacy and modern industrial electronics. The transition from National Semiconductor to Texas Instruments means datasheets may carry either branding. The DS3650MX represents a standard solution for multi-channel differential signal reception in serial communication buses.

Replacement Considerations

Direct substitutes include the DS3652MX and DS3654MX from the same product family. Cross-reference pinouts and electrical characteristics before substitution. Texas Instruments equivalents should be verified for package compatibility and functional parity.