ADM211ARSZ-REEL

Overview

The ADM211ARSZ-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 that generate ±10 V levels from external capacitors ranging from 0.1 μF to 10 μF. The device supports data rates up to 120 kB/s and features a low-power shutdown mode reducing consumption to less than 5 μW. It includes an active-low enable input for receiver tri-stating and operates within an industrial temperature range of -40°C to +85°C in a 28-lead SSOP package.

Feature Summary

• Integrates internal charge pump voltage converters to operate from a single 5 V supply without requiring external ±12 V rails.
• Features a low-power shutdown mode that disables the charge pump and reduces power dissipation to under 5 μW.
• Includes an active-low enable input to place receiver outputs in a high-impedance state for bus sharing.
• Provides Schmitt-trigger inputs on receivers to ensure noise immunity and error-free reception.

Applications

• Battery-powered equipment requiring minimal standby power
• Computers and peripheral interface connections
• Modems and printers utilizing standard serial communication

Procurement Notes

Verify the specific ordering suffix matches the required package type and compliance status. The 'Z' suffix indicates RoHS compliance, while '-REEL' denotes tape-and-reel packaging. Confirm the industrial temperature grade ('A') aligns with system environmental requirements before finalizing procurement orders.

Selection Notes

Select this component when designing systems limited to a single 5 V digital supply. It is suitable for applications needing multiple transmitter and receiver channels with low standby current. Ensure external capacitor values are selected between 0.1 μF and 10 μF to support the internal charge pump operation effectively.

Part Context

This part belongs to the ADM2xx series of line drivers and receivers intended for EIA-232-E communications. It serves as a direct replacement for older MAX206-211/213 devices, offering enhanced low-power capabilities and compatibility with modern single-supply microprocessor systems.

Replacement Considerations

The ADM211ARSZ-REEL is pin-compatible with the MAX211. Verify that the substitute device maintains the same 28-lead SSOP footprint and electrical characteristics for seamless integration into existing designs.