ADM560JR

Drivers, Receivers, Transceivers Overview

The ADM560JR is a four-driver, five-receiver RS-232 interface device designed for single +3.3 V operation. It integrates an on-board DC-to-DC converter that generates ±6.6 V from the input supply using only four 1 μF external capacitors. The device operates at data rates up to 116 kbps with a typical supply current of 5 mA and consumes only 0.2 μA in shutdown mode. It features EIA/TIA-232 compatibility, over-voltage protection on receiver inputs up to ±25 V, and latch-up immunity. The component is housed in a 28-lead Standard Small Outline Package (SOIC) and supports commercial temperature ranges from 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrates charge pump voltage doubler and inverter to generate internal ±6.6 V supplies from a single +3.3 V source.
• Provides ultralow power consumption with active operation at 1.3 mA and shutdown mode reducing current to 0.2 μA.
• Includes active low shutdown and active high receiver enable signals allowing specific receiver monitoring during low-power states.
• Features Schmitt trigger receivers with hysteresis for noise immunity and inputs tolerant to ±25 V overvoltage levels.

Drivers, Receivers, Transceivers Applications

• Notebook computers
• Battery-operated equipment
• Peripherals such as serial port mice
• Modems and printers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant when ordering, as the base model number corresponds to the standard SOIC form factor. Confirm lead-free status if required, noting that suffixes indicate RoHS compliance. Ensure the design accounts for the necessary external 1 μF capacitors for the internal charge pump circuitry. Check availability for the specific reel or tube packaging options listed in the manufacturer's ordering guide.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring minimal power dissipation in battery-powered systems. The integrated voltage generation eliminates the need for dual ±5 V supplies, simplifying board layout. Consider the ADM561 variant if all receivers must be disabled during shutdown rather than retaining two active receivers. Verify logic level compatibility, as transmitter inputs accept both 3 V and 5 V logic signals.

Drivers, Receivers, Transceivers Part Context

The ADM560/ADM561 series serves as an enhanced successor to the ADM241L family, offering improved power efficiency while maintaining pin compatibility. This lineage allows for direct upgrades in existing designs requiring lower quiescent current. The devices are specifically engineered for portable electronics where space and power constraints are critical, bridging the gap between legacy RS-232 drivers and modern low-voltage CMOS technologies.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet identifies the ADM560/ADM561 as essentially plug-in compatible modifications of the ADM241L family. Designers migrating from ADM241L derivatives can utilize this component without significant schematic changes. Verify that the target application does not require the specific shutdown behavior differences between the ADM560 and ADM561 variants.