MAX209EWG

Drivers, Receivers, Transceivers Overview

The MAX209EWG+ is an RS-232 transceiver from the MAX200-MAX209 family, designed for single +5V supply operation. It features two drivers and two receivers with integrated charge pump circuitry that eliminates the need for a bipolar ±12V supply. The device operates with VCC = +5V and requires an external V+ supply in the range of +9.0V to +13.2V. It supports data rates exceeding 120kbps while maintaining ±5V EIA/TIA-232E output levels. The component is available in a 16-pin Wide SO package and functions within an extended temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge pump circuitry enables single-supply operation without requiring a bipolar power source.
• Drivers maintain specified RS-232 signal levels at high data rates under standard loading conditions.
• TTL/CMOS compatible inputs include internal pullup resistors to simplify unused driver handling.

Drivers, Receivers, Transceivers Applications

• Battery-powered equipment requiring low-power interface solutions
• Handheld devices with limited board space constraints
• Portable diagnostic equipment utilizing RS-232 communication

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'EWG+' against official manufacturer documentation to confirm package type and temperature grade. Ensure the external V+ supply voltage aligns with the required +9.0V to +13.2V range for proper functionality. Confirm RoHS compliance status through authorized distributors or direct manufacturer channels before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-driver RS-232 interface is needed with a single +5V logic supply but an auxiliary higher voltage rail is available. It differs from the MAX202 by using only two external capacitors instead of four, reducing component count. Verify that the application can provide the necessary V+ voltage for the internal charge pump to generate the required negative voltage.

Drivers, Receivers, Transceivers Part Context

The MAX209 belongs to the broader MAX200-MAX209/MAX211/MAX213 family of +5V RS-232 transceivers. This family shares common architecture including integrated charge pumps and TTL/CMOS compatibility. Variations within the family differ primarily in the number of drivers/receivers, shutdown capabilities, and external capacitor requirements. The MAX209 specifically targets applications needing two channels with reduced external capacitance compared to the MAX202.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include the MAX201EWE+, which shares similar electrical characteristics and pinout configurations within the same family. Both devices utilize two external capacitors and support dual drivers/receivers. Verify package compatibility and temperature range specifications when substituting.