ADM233LAN

Overview

The ADM233LAN is a CMOS RS-232 transceiver from the ADM2xxL family, designed for EIA-232-E and V.28 interfaces using a single 5 V supply. It integrates two drivers and two receivers with an internal charge pump that generates ±10 V supplies, eliminating the need for external capacitors. The device supports data rates up to 120 kbps and features Schmitt trigger inputs with 0.65 V hysteresis for noise immunity. It operates within a temperature range of -40°C to +85°C and provides ±30 V receiver input protection.

Feature Summary

• Internal charge pump voltage converters generate required RS-232 levels without external components
• Schmitt trigger receiver inputs provide high noise immunity and error-free reception
• Single 5 V power supply operation eliminates requirement for dual voltage rails
• Receiver inputs withstand overvoltage conditions up to ±30 V

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and temperature grade. Confirm RoHS compliance status through current manufacturer datasheets or component markings. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when PCB space is limited due to its integrated charge pump design requiring no external capacitors. It is suitable for applications needing full-duplex communication at speeds up to 120 kbps. Verify that the system environment remains within the specified industrial temperature range and that the single 5 V supply meets the power requirements.

Part Context

The ADM233LAN belongs to the ADM2xxL enhanced upgrade series, succeeding the AD2xx family. This generation offers lower power consumption, faster slew rates, and compatibility with smaller capacitors. The 'AN' suffix typically denotes a specific package variant and industrial temperature rating within the broader ADM233L product line.

Replacement Considerations

The ADM233L serves as the base model for replacement. Other members of the ADM2xxL family may be compatible if pin counts and driver/receiver configurations align with the application requirements.