LTC1487CN8#PBF

Drivers, Receivers, Transceivers Overview

The LTC1487CN8#PBF is an ultra-low power RS-485/RS-422 differential line transceiver in an 8-pin PDIP package. It supports data rates up to 250 kbps with a single 5V supply (4.75V to 5.25V). The device features high input impedance, allowing up to 256 transceivers on a bus, and includes thermal shutdown protection. Quiescent current is typically 80mA with the driver disabled, 200mA with the driver enabled, and 1mA in shutdown mode. ESD protection is rated at -10kV Human Body Model.

Drivers, Receivers, Transceivers Feature Summary

• High input impedance allows connection of up to 256 transceivers to a single bus
• Controlled slew rate drivers reduce electromagnetic interference and improve signal fidelity
• Thermal shutdown circuit protects against excessive power dissipation during fault conditions
• Fail-safe receiver guarantees a high output state when inputs are left open

Drivers, Receivers, Transceivers Applications

• Battery-powered RS-485/RS-422 communication systems
• Low power industrial fieldbus networks
• Level translation between logic domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix CN8#PBF corresponds to the commercial temperature range and lead-free packaging. Confirm that the supplier provides the official Analog Devices datasheet for the LTC1487 series to validate electrical characteristics against the design requirements.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low power consumption and high bus density. Ensure the system operates within the 0°C to 70°C temperature range. Verify that the 250 kbps maximum data rate meets the network timing requirements and that the 5V supply voltage is stable.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1487 family of ultra-low power RS-485 transceivers. It is pin-compatible with the LTC485 but offers lower power consumption and higher input impedance. The CN8 designation indicates the commercial grade version in an 8-lead PDIP package.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC485 is a pin-compatible alternative. Verify if the higher quiescent current of the LTC485 is acceptable. Other RS-485 transceivers may require level shifting or different control logic due to varying enable pin configurations.