MAX209EWG+

Drivers, Receivers, Transceivers Overview

The MAX209EWG+ is a +5V RS-232 transceiver from the MAX200-MAX209 family, manufactured by Analog Devices Inc./Maxim Integrated. It features two drivers and two receivers with integrated charge-pump circuitry for single-supply operation. The device operates on a VCC supply of +5V ±10% and an external V+ supply ranging from +9.0V to +13.2V. It supports data rates exceeding 120kbps while maintaining ±5V EIA/TIA-232E output levels under worst-case conditions. The component is housed in a 24-pin Wide SO package and is rated for an extended operating temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge-pump voltage converter eliminates the need for bipolar ±12V supplies, enabling single-supply operation.
• Drivers maintain specified ±5V EIA/TIA-232E output signal levels at high data rates when loaded per specification.
• Receiver inputs feature guaranteed thresholds tighter than standard specifications to improve noise margins.
• TTL/CMOS compatible inputs include internal pullup resistors to simplify unused driver handling.

Drivers, Receivers, Transceivers Applications

• Battery-powered equipment requiring low power consumption
• Handheld communication devices
• Portable diagnostic equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'WG+' corresponds to the Wide SO package and lead-free status as defined in the official datasheet. Confirm that the required V+ supply voltage falls within the +9.0V to +13.2V range, as this variant differs from standard +5V-only models. Ensure the ordering code matches the exact pin configuration and temperature grade documented for the MAX209 series.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX209EWG+ when a dual-driver/receiver configuration is needed alongside an external V+ supply between +9V and +13.2V. This model is distinct from variants like the MAX202, which operate solely on +5V. Consider the 24-pin Wide SO package dimensions for PCB layout constraints. Verify compatibility with TTL or CMOS logic input levels before integration into the system design.

Drivers, Receivers, Transceivers Part Context

The MAX209EWG+ belongs to the MAX200–MAX209/MAX211/MAX213 family of +5V RS-232 transceivers. These components share common architecture but differ in driver/receiver counts and supply requirements. The MAX209 specifically requires an external V+ supply, distinguishing it from self-contained charge-pump models like the MAX203. This family is designed for applications needing compact RS-232 interfaces without bulky external voltage converters.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX209EWE is a pin-compatible alternative in the Wide SO package. For single-supply +5V applications, consider the MAX202EWE or MAX203CPP. Verify that any substitute maintains the required V+ supply range if the original design relies on the MAX209's specific voltage conversion topology.