ADM232AARN-REEL7

Overview

The ADM232AARN-REEL7 is a high-speed RS-232 line driver and receiver manufactured by Analog Devices Inc. It operates from a single +5 V power supply and supports transmission rates up to 200 kB/s. The device integrates two drivers and two receivers, utilizing an internal charge pump with four external 0.1 µF capacitors to generate the required bipolar voltage levels. It meets EIA-232-E and V.28 specifications and features Schmitt trigger inputs on the receivers for noise immunity. The component is housed in a 16-lead Standard Small Outline Package (R-16) and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual drivers and dual receivers for full-duplex communication
• Utilizes small 0.1 µF external capacitors for the internal charge pump
• Features Schmitt trigger inputs to ensure error-free reception of noisy signals
• Includes internal pull-up and pull-down resistors on input pins

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify that the ordering suffix matches the specific package variant required, as the R-16 designation indicates a narrow body SOIC. Confirm RoHS compliance status if environmental regulations apply to the assembly process. Ensure the reel quantity aligns with production requirements before finalizing the order.

Selection Notes

Select this component when a single 5 V supply is available and high-speed data transfer up to 200 kB/s is necessary. It serves as a pin-compatible upgrade for legacy AD232 designs. Verify that the application does not require shutdown or enable functions, which are reserved for the ADM222 and ADM242 variants respectively.

Part Context

This part belongs to the ADM222/ADM232A/ADM242 family of CMOS RS-232 transceivers. It is designed as a direct replacement for older AD232 devices and offers improved performance characteristics while maintaining compatibility with standard MAX232 pinouts. The family shares common fabrication processes but differs in control logic availability.

Replacement Considerations

The ADM232AARWZ is a wide-body SOIC alternative within the same series. The ADM232L is a lower-power predecessor, though it may have different electrical characteristics. Cross-check pin configurations against MAX232A equivalents if migrating from other manufacturers.