DS275SN

Overview

The DS275SN is a single RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V and supports full-duplex communication with one receiver and one driver. The device features an 800 mV receiver hysteresis for noise immunity. It is housed in an 8-SOIC package (0.154" width) and is designed for surface-mount installation. The component functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides full-duplex RS-232 signal conversion between TTL/CMOS logic levels and RS-232 voltages
• Incorporates receiver hysteresis to enhance signal integrity in noisy environments
• Designed for low-power applications with minimal standby current consumption

Applications

• Industrial control systems requiring serial communication interfaces
• Portable instrumentation and data acquisition devices
• Embedded systems utilizing RS-232 protocols for modem or peripheral connectivity

Procurement Notes

Verify the specific suffix requirements, as the base model DS275 may differ from the SN variant regarding packaging or compliance status. Confirm RoHS compliance details, as some sources indicate non-compliance for certain versions. Check for obsolescence notices, as this part is listed as discontinued by multiple distributors. Ensure the supplier provides valid traceability documentation for legacy components.

Selection Notes

Select the DS275SN when a single-channel, full-duplex RS-232 interface is required for 5V logic systems. Consider the 8-SOIC package constraints for PCB layout. Evaluate alternative parts if ESD protection is mandatory, as this device lacks internal ESD protection mechanisms. Verify that the 0°C to +70°C industrial temperature range meets the operational environment requirements.

Part Context

The DS275SN belongs to the Maxim Integrated DS275 family of line-powered RS-232 transceivers. This series is characterized by its ability to operate without external charge pump capacitors, simplifying board design. The SN designation typically indicates the SOIC-8 package variant within this product line, distinguishing it from other package options like DIP or TSSOP.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for pin-compatible alternatives.