LM224WDT

Overview

The LM224WDT is a low-power quad operational amplifier manufactured by STMicroelectronics, featuring four independent high-gain amplifiers with internal frequency compensation. It operates from a single power supply ranging from 3 V to 30 V or split supplies of ±1.5 V to ±15 V. Key electrical parameters include a gain-bandwidth product of 1.3 MHz, a slew rate of 400 mV/µs, and an input offset voltage of 3 mV. The device draws 1.2 mA of operating current and offers a common-mode rejection ratio of 70 dB. It is housed in a 14-pin SOIC package and supports surface mount installation across a temperature range of -40°C to +105°C.

Feature Summary

• Internal frequency compensation eliminates the need for external components
• Wide single-supply voltage operation capability
• Low power consumption independent of supply voltage magnitude

Applications

• Industrial signal conditioning circuits
• Interface applications requiring ground-referenced inputs
• General-purpose analog processing systems

Procurement Notes

Verify the specific suffix 'WDT' against the official STMicroelectronics datasheet to confirm the exact package type (SOIC-14) and tape-and-reel packaging configuration. Ensure the component meets RoHS compliance requirements as specified in the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits that require multiple operational amplifiers within a single package while maintaining low power dissipation. The wide input common-mode voltage range including ground makes it suitable for single-supply applications where signals approach the negative rail.

Part Context

This part belongs to the LM224 series, which consists of low-power quad operational amplifiers with low input bias current. The series is characterized by its ability to operate over a wide voltage range with minimal power drain, making it distinct from higher-speed or higher-current alternatives in the broader operational amplifier market.

Replacement Considerations

Consult official substitution lists for compatible parts such as LM224ADT or LM224APT. Verify pin compatibility and electrical parameter alignment with the original datasheet before implementing any alternative component in the design.

FAQ

Does the LM224WDT support shutdown functionality?

No, the LM224WDT does not feature a shutdown mode; it operates continuously once powered.

What is the input common-mode voltage range?

The input common-mode voltage range includes ground, allowing for single-supply operation with signals near the negative rail.