ADM3222AN

Drivers, Receivers, Transceivers Overview

The ADM3222AN is a low-power, dual RS-232 transceiver manufactured by Analog Devices Inc. It operates from a single 3.3 V supply and supports data rates up to 460 kbps while meeting EIA-232E specifications. The device incorporates an internal charge pump requiring four external 0.1 μF capacitors to generate the necessary voltage levels. Key features include a shutdown mode that reduces quiescent current to less than 0.5 μA and an enable input for receiver control. It is housed in an 18-lead Plastic Dual In-Line Package (N-18) with an operating temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge pump enables operation from a single 3.3 V power supply using minimal external components.
• Shutdown control pin significantly reduces power consumption for battery-powered applications.
• Receiver enable input allows three-stating of outputs for bus management.
• Internal pull-down resistors on receiver inputs ensure defined logic states when unconnected.

Drivers, Receivers, Transceivers Applications

• General-purpose RS-232 data links
• Portable instruments
• Printers and palmtop computers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package option N-18 corresponds to the required board layout. Confirm RoHS compliance status if environmental regulations apply to the design. Ensure the ordering suffix matches the exact quantity format required by the supplier. Cross-reference the datasheet revision to confirm all electrical parameters align with the current production version.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low-power RS-232 interface is needed for 3.3 V systems. The ADM3222AN is suitable for designs requiring shutdown functionality to extend battery life. Compare against the ADM3202 if ESD protection on RS-232 pins is a mandatory requirement, as the ADM3222 lacks this specific feature. Ensure the 18-lead PDIP footprint fits the mechanical constraints.

Drivers, Receivers, Transceivers Part Context

The ADM3222AN belongs to the ADM3202/ADM3222/ADM1385 family of line drivers and receivers. These devices are enhancements of the AD230 to AD241 series, offering improved performance and lower power consumption. The ADM3222 specifically adds shutdown and enable capabilities compared to the base ADM3202 model, making it more versatile for power-sensitive portable designs.

Drivers, Receivers, Transceivers Replacement Considerations

The ADM3202 is a functional substitute but lacks the shutdown and enable pins. The ADM1385 offers similar control features but uses a different pinout configuration. Verify pin compatibility before swapping between these variants within the same product family.