LTC489CN#PBF

Drivers, Receivers, Transceivers Overview

The LTC489CN#PBF is a low-power quad RS-485 line receiver manufactured by Analog Devices Inc. It operates on a single 5V supply with a specified range of 4.75V to 5.25V and draws a typical supply current of 7mA. The device features four independent receivers with three-state outputs, supporting data rates up to 10Mb/s. It provides an extended common-mode voltage range from -7V to +12V, allowing for significant ground differences between devices. Key electrical characteristics include a typical propagation delay of 28ns, 60mV input hysteresis, and a fail-safe feature that guarantees a high output state when inputs are left open.

Drivers, Receivers, Transceivers Feature Summary

• Quad differential bus/line receivers designed for multipoint data transmission in RS-485 applications
• Three-state outputs maintain high impedance across the entire common mode range
• Fail-safe feature ensures a high output state when receiver inputs are floating or open
• CMOS design offers power savings while maintaining ruggedness against overload and ESD damage

Drivers, Receivers, Transceivers Applications

• Multipoint data transmission systems using RS-485 standards
• RS-422 compliant communication networks
• Level translation interfaces between different logic families

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature range. The CN suffix indicates a narrow plastic DIP package suitable for through-hole mounting with an operating temperature range of 0°C to 70°C. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement decisions.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low-power quad receiver is required for RS-485 buses without integrated driver functionality. It is pin-compatible with the SN75175, facilitating direct upgrades or replacements in existing designs. Consider the 0°C to 70°C commercial temperature range and the 16-lead PDIP package constraints during system integration.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC488/LTC489 family of low-power RS-485/RS-422 receivers. The LTC489 variant specifically provides four receivers, whereas the LTC488 offers two receivers and two drivers. Both share similar electrical characteristics and packaging options, serving as complementary components for building half-duplex or full-duplex communication nodes.

Drivers, Receivers, Transceivers Replacement Considerations

The SN75175 is explicitly noted as pin-compatible with the LTC489. Designers replacing legacy parts should verify that the replacement meets the specific common-mode range and power consumption requirements of the original design.