MAX1480CCPI

Drivers, Receivers, Transceivers Overview

The MAX1480CCPI+ is a complete, electrically isolated RS-485/RS-422 data-communications interface solution housed in a 28-pin wide plastic DIP package. It integrates transceivers, optocouplers, and a transformer to provide full isolation between the logic side and the signal path. The device operates on a single +5V supply and supports half-duplex communication with a maximum data rate of 250kbps. Key electrical parameters include an operating temperature range of 0°C to +70°C, typical isolation resistance of 10,000 MΩ, and isolation capacitance of 10 pF. Drivers feature short-circuit current limiting and thermal shutdown protection.

Drivers, Receivers, Transceivers Feature Summary

• Integrated isolation barrier utilizing internal transformers and high-speed optocouplers for signal and power transfer across the isolation boundary.
• Reduced-slew-rate driver design that minimizes electromagnetic interference (EMI) and reduces reflections caused by improperly terminated cables.
• Fail-safe receiver input that guarantees a known output state when the differential inputs are left open or disconnected.
• Driver outputs protected against excessive power dissipation via thermal shutdown circuitry that forces outputs into a high-impedance state.

Drivers, Receivers, Transceivers Applications

• Isolated RS-485/RS-422 Data Interface
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks
• Automatic Test Equipment
• HVAC/Building Control Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C) and reduced slew rate capability. Confirm the '+'' suffix denotes lead-free compliance. Ensure the 28-pin PDIP package matches the target PCB footprint. Cross-reference the manufacturer's latest datasheet for any pinout revisions or RoHS status updates before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX1480CCPI+ over the MAX1480AEPI+ if the application requires reduced EMI through limited driver slew rates and operates within the commercial temperature range. Choose this model instead of the MAX1480B variant if faster driver enable times are required while maintaining the 250kbps data rate limit. Verify that the half-duplex architecture aligns with the system's communication protocol requirements.

Drivers, Receivers, Transceivers Part Context

The MAX1480 series represents a family of hybrid microcircuits designed for robust industrial communication. The MAX1480C specifically targets applications needing moderate speed with enhanced signal integrity features. It serves as a bridge between standard TTL/CMOS logic levels and the differential signaling requirements of RS-485/RS-422 networks, providing galvanic isolation without external discrete components.

Drivers, Receivers, Transceivers Replacement Considerations

MAX1480BCPI+ offers similar functionality but with different driver enable timing characteristics. MAX1480ACPI+ provides higher speed capabilities up to 2.5Mbps but lacks the reduced slew rate feature. Ensure any substitute maintains the same 28-pin DIP package and isolation voltage ratings.