LTC485CN8#PBF

Drivers, Receivers, Transceivers Overview

The LTC485CN8#PBF is a low-power RS-485 interface transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply (4.75V to 5.25V) and supports data rates up to 2.5Mb/s with typical driver propagation delays of 30ns and skew of 5ns. The device features one driver and one receiver in an 8-lead plastic DIP package, designed for multipoint communication with an extended common mode range from –7V to +12V. Typical supply current is 300μA when enabled and 500μA when disabled. It includes thermal shutdown protection, glitch-free power-up/down outputs, and fail-safe receiver inputs.

Drivers, Receivers, Transceivers Feature Summary

• Low power CMOS design with ultralow supply current consumption
• Extended common mode range supporting ±7V ground differences between devices
• Thermal shutdown circuit prevents excessive power dissipation during faults
• Fail-safe receiver guarantees high output state when inputs are left open

Drivers, Receivers, Transceivers Applications

• Multipoint data transmission networks using the RS-485 standard
• Level translation applications requiring low power consumption
• Industrial control systems with extended common mode voltage requirements

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free finish and RoHS compliance as per manufacturer specifications. Confirm the N8 package designation corresponds to the 8-lead plastic DIP form factor required for your PCB layout. Ensure the CN8 suffix aligns with the commercial temperature range of 0°C to 70°C for your intended operating environment.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring a single 5V supply and half-duplex RS-485 communication. It is suitable for applications needing extended common mode range beyond standard supply rails. Consider the 8-lead PDIP package if through-hole mounting is preferred over surface mount alternatives like the S8 variant.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC485 family of low-power RS-485/RS-422 transceivers. It serves as a foundational component for industrial bus interfaces, offering a balance of low power consumption and robust fault protection. The device is pin-compatible with higher voltage protected variants like the LTC2862, facilitating design upgrades.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC485CS8#PBF offers the same electrical performance in an 8-lead SOIC surface-mount package. For designs requiring higher data rates, the LTC1485 provides 10Mbps capability. Lower power options with shutdown modes include the LTC1481.