ADM213ARSZ-REEL

Overview

The ADM213ARSZ-REEL is a CMOS RS-232 transceiver from the ADM2xx family, designed for EIA-232-E and V.28 interfaces using a single 5 V supply. It integrates four drivers and five receivers with on-board dc-to-dc converters generating ±10 V levels. The device supports data rates up to 120 kB/s and features low power shutdown (≤5 μW) with an active-low SD pin. Two receivers remain active during shutdown for ring indicator monitoring. It includes an active-high EN pin for receiver tri-stating, Schmitt-trigger inputs with hysteresis, and internal pull-up/down resistors. Packaged in a 28-lead SSOP (RS-28) for industrial temperature range (-40°C to +85°C).

Feature Summary

• Integrates dual charge pump voltage converters to generate required RS-232 voltages from a single 5 V source.
• Features low power shutdown mode that disables the charge pump and most receivers while maintaining minimal current consumption.
• Includes two receivers that remain active during shutdown to facilitate external activity monitoring.
• Provides an enable input to place receiver outputs in a high impedance state for bus sharing.

Applications

• Battery-powered equipment requiring low standby power
• Computers and peripheral interface connections
• Modems and printers utilizing standard serial communication
• Instruments needing robust noise immunity

Procurement Notes

Verify the specific ordering suffix matches the required package type and compliance standards. Confirm the reel packaging aligns with automated assembly requirements. Ensure the component version corresponds to the latest datasheet revision for accurate electrical characteristics and pinout definitions before finalizing procurement orders.

Selection Notes

Select this part when a single 5 V supply is available but RS-232 voltage levels are required. Choose this model specifically for applications needing two receivers to stay active during system sleep or shutdown states. Consider the SSOP package dimensions if board space is constrained compared to SOIC alternatives.

Part Context

This component belongs to the ADM2xx series of line drivers and receivers. It serves as a modification and enhancement of the earlier AD2xx family, offering improved power efficiency and additional control features like the enable pin. The ADM213 variant is distinct within the family due to its specific receiver configuration during shutdown modes.

Replacement Considerations

The ADM213 is pin compatible with the MAX206 through MAX211 series. Verify functional equivalence regarding shutdown logic polarity and receiver enable behavior when substituting these parts. Check absolute maximum ratings and thermal dissipation limits to ensure compatibility with existing circuit designs.