AD7306AR-REEL

Overview

The AD7306AR-REEL is a monolithic RS-232/RS-422 transceiver operating from a single +5 V supply. It integrates two RS-232 drivers, one RS-422 driver, one RS-232 receiver, and one configurable receiver path. The internal charge pump generates ±10 V levels using four 0.1 μF capacitors. RS-232 channels support data rates up to 100 kHz, while RS-422 channels support high-speed communications up to 5 MHz. The device operates within an industrial temperature range of –40°C to +85°C.

Feature Summary

• Integrates RS-232 and RS-422 interfaces on a single chip with TTL compatibility
• Internal charge pump enables operation from a single +5 V supply without external bipolar power sources
• Configurable receiver path selectable between RS-232 and RS-422 modes via the 232/422 SEL pin
• High-speed RS-422 operation with low timing skew between complementary outputs

Applications

• DTE-DCE Interface
• Packet Switching
• Local Area Networks
• Data Concentration
• Integrated Services Digital Network (ISDN)

Procurement Notes

Verify that the ordering suffix 'REEL' corresponds to the tape-and-reel packaging format for the AD7306AR variant. Confirm the specific package option RW-24 matches the required footprint. Ensure the component meets the industrial temperature specifications of –40°C to +85°C as defined in the Analog Devices ordering guide.

Selection Notes

Select this component when a design requires simultaneous support for both RS-232 and RS-422 standards within a single integrated circuit. It is suitable for applications needing a single +5 V power supply and reduced printed circuit board space due to the use of miniature 0.1 μF capacitors for the charge pump. Consider the 5 MHz transmission rate capability for high-speed differential signaling requirements.

Part Context

The AD7306 series provides a dual-standard interface solution by combining RS-232 and RS-422 functionalities. The AD7306AR-REEL specifically denotes the standard small outline package version supplied in reel form. This part belongs to the broader AD7306 family, which includes variants in plastic DIP packages and different temperature grades, all sharing the same core transceiver architecture.

Replacement Considerations

Public confirmed substitutes include other AD7306 variants such as AD7306ANZ or AD7306JRZ. Verify that any replacement maintains the same 24-lead package dimensions and pinout configuration. Ensure the substitute supports the required industrial temperature range and single-supply operation characteristics.