LTC488CSW#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC488CSW#TRPBF is a low-power quad RS-485 line receiver manufactured by Analog Devices Inc. It operates on a single 5V supply with a voltage range of 4.75V to 5.25V and draws a typical supply current of 7mA. The device features four receivers with three-state outputs, supporting data rates up to 10Mb/s. It provides an extended common-mode range from -7V to +12V, allowing for significant ground differences between bus devices. Key electrical characteristics include a typical propagation delay of 28ns, 60mV input hysteresis, and fail-safe functionality that guarantees a high output state when inputs are open. The component is housed in a 16-lead plastic wide SOIC (SW) package.

Drivers, Receivers, Transceivers Feature Summary

• Low power CMOS design offering significant savings over bipolar counterparts while maintaining ruggedness against overload and ESD damage.
• Fail-safe feature ensures a high output state when differential inputs are left open or floating.
• Three-state outputs maintain high impedance across the entire common-mode range and during power-off conditions.
• Extended common-mode range permits ±7V ground difference between devices connected to the bus.

Drivers, Receivers, Transceivers Applications

• Multipoint data transmission systems adhering to RS-485 standards.
• RS-422 communication applications requiring differential bus reception.
• Level translation circuits interfacing different logic voltage domains.

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube packaging. Confirm the 'C' suffix indicates the commercial temperature range of 0°C to 70°C. Ensure the manufacturer is identified as Analog Devices Inc., formerly Linear Technology Corporation, to match the datasheet source. Cross-reference the 16-lead SW package dimensions with your PCB footprint requirements.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low-power, quad receiver is required for RS-485 networks without integrated driver capabilities. It is suitable for applications needing extended common-mode voltage tolerance and fail-safe behavior. Consider the 28ns propagation delay for timing constraints. Verify that the 5V supply requirement aligns with the system power architecture. This part is pin-compatible with SN75173 equivalents for direct replacement scenarios.

Drivers, Receivers, Transceivers Part Context

The LTC488 is part of the LTC488/LTC489 family of low-power differential bus receivers. While the LTC488 provides four independent receivers, the companion LTC489 offers similar functionality but with individual enable pins for each receiver pair. Both devices share identical electrical specifications and package options, differing primarily in control logic configuration. They are designed to complement drivers like the LTC486 and LTC487 in half-duplex transmission systems.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC488 is pin-compatible with the SN75173. Designers replacing legacy components should verify that the substitute meets the 4.75V to 5.25V supply range and 10Mb/s data rate requirements. Ensure the replacement supports the same 16-lead SOIC package and thermal characteristics.