ADM202JRNZ

Overview

The ADM202JRNZ is a dual-channel RS-232 line driver and receiver designed for single 5 V power supply operation. It integrates on-chip charge pumps to generate ±10 V output levels using small 0.1 µF external capacitors. The device supports transmission rates up to 120 kB and meets TIA/EIA-232-E specifications. It features low power consumption of 2.5 mA typical, ±30 V receiver input protection, and ESD protection exceeding 2 kV. Packaged in a 16-lead SOIC (R-16), it operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates high-efficiency charge pumps to generate RS-232 voltage levels from a single 5 V supply using minimal external capacitance.
• Provides full duplex communication with two drivers and two receivers capable of 120 kB data rates.
• Includes overvoltage protection allowing receiver inputs to withstand continuous voltages exceeding ±30 V.

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify the specific suffix 'NZ' indicates RoHS compliance when sourcing this component. Confirm the package type matches the required 16-lead Standard Small Outline Package (R-16) dimensions. Ensure the operating environment stays within the specified 0°C to +70°C commercial temperature range for optimal performance.

Selection Notes

Select this component for applications requiring RS-232 interface capabilities with a single 5 V logic supply. It is suitable where space constraints limit capacitor size due to the 0.1 µF requirement. Consider the 120 kB baud rate limit and ensure the load conditions do not exceed the specified drive current capabilities for reliable signal integrity.

Part Context

This part belongs to the ADM202 series of CMOS RS-232 transceivers manufactured by Analog Devices. The 'J' designation specifies the commercial temperature grade, while 'RNZ' identifies the 16-lead SOIC package with RoHS compliance. It serves as a direct replacement for legacy RS-232 interfaces requiring low power and simplified external circuitry.

Replacement Considerations

ADM202JRNZ-REEL

FAQ

What is the maximum transmission rate supported by the ADM202?

The ADM202 supports a maximum transmission rate of 120 kB.

How does the ADM202 generate RS-232 voltage levels?

It uses an internal charge pump design that generates ±10 V from the 5 V supply using external 0.1 µF capacitors.

Is the ADM202 compatible with TTL and CMOS logic levels?

Yes, the inputs are compatible with both TTL and CMOS logic levels, featuring internal pull-up resistors.