LTC1382ISW#PBF

Drivers, Receivers, Transceivers Overview

The LTC1382ISW#PBF is a low-power RS-232 transceiver manufactured by Analog Devices Inc. in an 18-lead SOIC package. It operates from a single 5V supply with a quiescent current of 220µA and drops to 0.2µA in shutdown mode. The device features two drivers and two receivers, supporting data rates up to 120kBaud. It utilizes four 0.1µF capacitors for its charge pump. The ISW suffix indicates an industrial temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Ultra-low power operation with dedicated shutdown mode reducing supply current to 0.2µA
• Integrated ESD protection rated at ±10kV on all RS232 I/O lines
• Space-saving design requiring only four small 0.1µF external capacitors
• Robust input/output tolerance allowing ±25V forcing without damage

Drivers, Receivers, Transceivers Applications

• Notebook computers
• Palmtop computers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix ISW#PBF to confirm the wide SOIC package and lead-free status. Confirm the industrial temperature grade (-40°C to +85°C) matches the system requirements. Ensure the single 5V supply rail is stable within the specified limits before deployment.

Drivers, Receivers, Transceivers Selection Notes

Select this component when ultra-low standby power is critical for battery-operated portable devices. It serves as a pin-compatible replacement for the LT1180A. Consider the 120kBaud limit and 0.1µF capacitor requirement during schematic design. Verify that the 18-lead SOIC footprint fits the PCB layout constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1382 family of 5V low-power RS232 transceivers. It shares functional similarities with the LTC1383 but differs in package size and pin count. The ISW variant specifically denotes the industrial temperature range and surface-mount packaging compared to the commercial CN or CSW options.

Drivers, Receivers, Transceivers Replacement Considerations

LT1180A

Drivers, Receivers, Transceivers FAQ

How does the ON/OFF pin control the device state?

Applying a logic low to the ON/OFF pin activates Shutdown mode, turning off the charge pump, forcing driver outputs to three-state, and reducing supply current to 0.2µA.

What is the maximum voltage the receiver inputs can withstand?

Receiver inputs can be forced to ±25V without damage, providing robust protection against overvoltage conditions on the RS232 line.

Does the LTC1382 support full-duplex communication?

Yes, the device contains two independent drivers and two independent receivers, enabling full-duplex RS232 communication.