AD7306AN

Overview

The AD7306ANZ is a monolithic RS-232/RS-422 transceiver operating from a single +5 V supply. It integrates two RS-232 drivers, one RS-422 driver, one RS-232 receiver, and one configurable receiver. The internal charge pump generates ±10 V levels using four 0.1 μF capacitors. RS-232 supports up to 100 kHz; RS-422 supports up to 5 MHz. Supply voltage range is 4.75 V to 5.25 V. Operating temperature is -40°C to +85°C.

Feature Summary

• Integrates RS-232 and RS-422 interfaces on a single chip
• Internal charge pump enables operation from a single +5 V supply
• Configurable receiver path selectable via the 232/422 SEL pin
• Short circuit protection on all driver outputs

Applications

• DTE-DCE Interface
• Packet Switching
• Local Area Networks
• Data Concentration
• Integrated Services Digital Network (ISDN)

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current guide. Suffixes such as 'ANZ' indicate a plastic DIP package with RoHS compliance. Confirm that the required temperature grade matches the industrial specification (-40°C to +85°C) for this part number. Ensure the package type aligns with the design footprint requirements.

Selection Notes

Select this component when both RS-232 and RS-422 standards are required within a single interface block. The device is suitable for applications needing high-speed differential transmission alongside standard serial communication. Consider the DIP-24 package constraints if board space allows. Verify that the load capacitance does not exceed limits for the desired data rate.

Part Context

The AD7306 series provides a dual-standard solution for serial communication interfaces. It combines TTL/CMOS logic level shifting with EIA RS-232 and RS-422 electrical specifications. The family includes variants in SOIC and DIP packages with different temperature ratings. This integration reduces component count compared to using separate transceivers for each standard.

Replacement Considerations

Public confirmed substitutes include other Analog Devices RS-232/RS-422 transceivers within the same product line. Verify functional compatibility regarding pinout and voltage generation before substitution. Ensure the replacement part meets the same thermal and electrical performance criteria.