ADM3312EACP

Drivers, Receivers, Transceivers Overview

The ADM3312EACP is a single-supply RS-232 transceiver from Analog Devices, operating within a voltage range of 2.7 V to 3.6 V. It integrates three drivers and three receivers with a maximum data rate of 460 kb/s. The device features Green Idle power-saving mode and low EMI characteristics. It provides robust electrostatic discharge protection exceeding 15 kV on RS-232 I/Os. The component utilizes an internal charge pump for voltage generation and includes a shutdown function that reduces supply current to approximately 1 µA while keeping one receiver active.

Drivers, Receivers, Transceivers Feature Summary

• Green Idle power-saving mode minimizes consumption by gating the charge pump oscillator under varying load conditions.
• Integrated shutdown facility reduces power consumption significantly while maintaining one active receiver for peripheral monitoring.
• High-level ESD protection ensures reliability in harsh electrical environments and frequent cable connection cycles.

Drivers, Receivers, Transceivers Applications

• Serial port applications on notebook and laptop computers
• PDAs, hand-held devices, and palmtop computers
• Mobile phone data cables

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (LFCSP or TSSOP) required for the design, as the base model number covers multiple physical footprints. Confirm the suffix indicates the correct reel or tray packaging configuration intended for the manufacturing process. Ensure the ordering information matches the exact temperature grade and lead finish specifications defined in the manufacturer's official documentation.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a compact RS-232 interface is needed for battery-powered portable electronics requiring low quiescent current. The device is suitable for systems where full duplex communication at moderate speeds is necessary without dual power supplies. Consider the specific pinout requirements of the LFCSP or TSSOP package during the layout phase to ensure proper thermal and electrical performance.

Drivers, Receivers, Transceivers Part Context

This component belongs to the ADM33xxE family of serial port transceivers designed for 3.3 V logic operation. It shares architectural similarities with the ADM3307E, ADM3310E, ADM3311E, and ADM3315E, differing primarily in the number of integrated drivers and receivers. The ADM3312E specifically targets applications requiring a balanced three-driver and three-receiver configuration.

Drivers, Receivers, Transceivers Replacement Considerations

ADM3315E: Offers similar functionality but features higher receiver input resistance to reduce drive requirements.

Drivers, Receivers, Transceivers FAQ

How does the Green Idle mode function?

Green Idle mode monitors the charge pump output voltage and gates the oscillator on and off to maintain the voltage at approximately ±7.25 V, minimizing power consumption under light load conditions.

What happens to the receivers during shutdown mode?

In shutdown mode, all transmitters are disabled, but one receiver remains active to allow monitoring of peripheral devices until communication begins.

What is the ESD protection rating for the RS-232 lines?

The RS-232 inputs and outputs provide electrostatic discharge protection exceeding 15 kV according to the IEC 1000-4-2 standard.