LTC2803IDHC#PBF

Drivers, Receivers, Transceivers Overview

The LTC2803IDHC#PBF is a dual RS-232 transceiver manufactured by Analog Devices Inc. It operates on a supply voltage range of 1.8V to 5.5V and features two drivers and two receivers. The device supports data rates up to 250kbps for a 1nF/3kΩ load and 100kbps for a standard TIA/EIA-232-F load (2.5nF/3kΩ). It utilizes an integrated DC-to-DC converter to generate internal power supplies, eliminating the need for external charge pumps. The component is housed in a 16-lead 5mm x 3mm plastic DFN package with an exposed thermal pad.

Drivers, Receivers, Transceivers Feature Summary

• Integrated DC-to-DC converter generates required RS-232 driver voltages from low-voltage logic supplies
• Logic supply pin allows independent interfacing with various logic levels ranging from 1.8V to 5.5V
• Low-power shutdown mode reduces current consumption to 1µA for extended battery life
• Driver outputs are protected against overload and can withstand short circuits to ground or ±15V

Drivers, Receivers, Transceivers Applications

• Battery-powered systems utilizing alkaline, NiCd, or NiMH cells
• Computers and consumer electronics requiring serial communication
• Diagnostic ports for industrial equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free finish and RoHS compliance when sourcing. Confirm that the IDHC suffix corresponds to the industrial temperature grade (-40°C to 85°C) and the DFN-16 package type. Ensure compatibility with the required PCB footprint dimensions for the 5mm x 3mm plastic DFN housing before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the LTC2804 if the application requires a maximum data rate of 250kbps rather than 1Mbps. Verify that the 16-lead DFN package fits the design constraints compared to the SSOP-16 option available in the LTC2803IGN-1 variant. Consider the separate VL pin requirement for logic level shifting if the system operates at different voltage domains than the main supply.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2801/LTC2802/LTC2803/LTC2804 family of single and dual RS-232 transceivers. While the LTC2803 provides dual channels at lower speeds, the LTC2804 offers high-speed operation up to 1Mbps. Both share similar packaging options and power-saving features, allowing for flexible selection based on bandwidth requirements within the same product line.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include the LTC2804IDHC#PBF for higher speed applications or the LTC2803IGN-1#PBF for SSOP-16 packaging compatibility.