LTC2803CGN-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2803CGN-1#TRPBF is a dual RS-232 transceiver in a 16-lead narrow SSOP package. It operates on a single supply voltage ranging from 1.8V to 5.5V and includes an integrated DC-to-DC converter to generate the necessary positive and negative voltages for RS-232 signaling. The device supports data rates up to 250kbps with a 1nF load and 100kbps with a standard 2.5nF load. It features low-power modes, including a shutdown mode drawing 1µA and a receivers-active mode drawing 15µA. The component complies with TIA/EIA-232-F standards and offers protection against ±10kV ESD.

Drivers, Receivers, Transceivers Feature Summary

• Integrated DC-to-DC converter eliminates external charge pump components
• Low-power operation with shutdown and receiver-active modes
• High ESD protection on RS-232 interface pins
• Logic supply pin allows independent level shifting

Drivers, Receivers, Transceivers Applications

• Battery-powered systems
• Computers and consumer electronics
• Diagnostic ports

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing this component. Confirm the manufacturer designation matches Analog Devices Inc. or its predecessor Linear Technology Corporation. Ensure the part number corresponds to the commercial temperature grade (0°C to 70°C) as indicated by the 'C' in the model string. Cross-reference the datasheet revision to ensure compatibility with current design specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring dual RS-232 channels within a narrow SSOP footprint. It is suitable for designs operating directly from two alkaline, NiCd, or NiMH cells due to the wide input voltage range. Consider the 250kbps maximum data rate limitation compared to higher-speed variants like the LTC2804. Verify that the required logic levels are compatible with the separate VL supply pin.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2801/LTC2802/LTC2803/LTC2804 family of single and dual RS-232 transceivers. The LTC2803 variant specifically provides two drivers and two receivers. The GN-1 suffix denotes the narrow SSOP-16 package option, distinguishing it from the DFN packages used by other family members. The -1 suffix indicates the specific control pin configuration for this package type.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2803IGN-1#TRPBF

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate for the LTC2803?

The maximum data rate is 250kbps with a 1nF/3kΩ load and 100kbps with a 2.5nF/3kΩ TIA/EIA-232-F load.

How does the device handle power consumption in standby?

In shutdown mode, the VCC supply current reduces to 1µA. In receivers-active mode, the VL supply current is reduced to 15µA while keeping receivers active at reduced speed.

Is the logic supply dependent on the main supply?

No, the VL logic supply pin allows interfacing with different logic levels independently of the VCC supply, which powers the internal DC-DC converter.