ADM233LJN

Overview

The ADM233LJN is a CMOS RS-232 transceiver from Analog Devices, designed for EIA-232-E and V.28 communications interfaces. It operates on a single 5 V supply (±5%) and features two drivers and two receivers with full-duplex capability. The device achieves a data rate of 120 kbps using internal charge pump converters that generate ±10 V supplies without external capacitors. It provides an output voltage swing of ±9 V at a typical supply current of 13 mA. The component supports industrial temperature ranges (-40°C to +85°C) and utilizes a 20-pin PDIP package.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• Single 5 V power supply operation
• Schmitt trigger inputs provide noise immunity

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify the specific suffix 'J' indicates the industrial temperature grade (-40°C to +85°C). Confirm the package type matches the required PCB footprint. Ensure the ordering code corresponds to the exact manufacturer part number to avoid functional discrepancies.

Selection Notes

Select this component when board space is limited due to the absence of external capacitors. It is suitable for applications requiring standard RS-232 levels without shutdown control. Verify that the 120 kbps speed meets system requirements.

Part Context

This part belongs to the ADM2xxL family of line drivers/receivers. It serves as an enhanced upgrade to the AD2xx series, offering lower power consumption and faster slew rates. Unlike other family members, it integrates all necessary components for operation within the package.

Replacement Considerations

ADM233LN

FAQ

Does the ADM233L require external capacitors?

No, the ADM233L has internally connected charge pump capacitors and does not require any external components.

What is the input protection level for the receiver?

The receiver inputs are protected against overvoltages up to ±30 V.