MAX3486CPA

Drivers, Receivers, Transceivers Overview

The MAX3486CPA is a half-duplex RS-422/RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +3.3V supply without requiring a charge pump and features slew-rate limiting for errorless data transmission at rates up to 10Mbps. The device includes one driver and one receiver, offering ±15kV ESD protection on I/O pins and a -7V to +12V common-mode input voltage range. Designed for industrial environments, it supports up to 32 transceivers on the bus and incorporates current-limiting and thermal shutdown for driver overload protection. It utilizes an industry-standard pinout compatible with legacy designs.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited output drivers ensure errorless data transmission at high speeds.
• Integrated ±15kV ESD protection on RS-485 I/O pins enhances system robustness.
• Operates directly from a single +3.3V supply, eliminating the need for charge pumps.
• Includes current-limiting and thermal shutdown mechanisms for driver protection.

Drivers, Receivers, Transceivers Applications

• Industrial communication networks utilizing RS-485 or RS-422 protocols
• Building automation and control systems requiring reliable half-duplex data exchange
• Multi-drop bus architectures supporting up to 32 nodes

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature range. Ensure the component matches the required RS-485/RS-422 standard compliance. Check RoHS status and manufacturing origin if regulatory adherence is critical. Confirm availability through authorized distributors to avoid counterfeit parts. Validate that the +3.3V logic level compatibility meets the system requirements.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low-power, 3.3V-only solution is required for RS-485 applications without charge pump overhead. It is suitable for designs needing slew-rate limiting to reduce electromagnetic interference. Choose this part over faster variants if signal integrity on long cables is a priority. Ensure the half-duplex configuration aligns with the bidirectional communication needs of the application.

Drivers, Receivers, Transceivers Part Context

The MAX3486CPA belongs to the MAX348xE family of 3.3V transceivers. It shares functional similarities with the MAX3485E and MAX3490E but differs in data rate specifications and ESD protection levels. Unlike the MAX3483E, which offers higher speed, the MAX3486CPA prioritizes slew-rate limiting. It is distinct from full-duplex versions like the MAX3487E, providing only half-duplex operation.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3486CSA+ serves as a surface-mount equivalent within the same series. For higher speed requirements, the MAX3485E family may be considered, though ESD ratings differ. Verify pinout compatibility with the industry-standard 75176 layout before substituting.