LM248D

Overview

The LM248D is a quad operational amplifier manufactured by Texas Instruments, housed in a 14-pin SOIC package. It features a gain bandwidth product of 1 MHz and a slew rate of 500 mV/μs. The device operates with a supply voltage range of 8 V to 36 V (±4 V to ±18 V) and draws 2.4 mA of operating current. Key electrical specifications include an input offset voltage of 1 mV, input bias current of 30 nA, and a common-mode rejection ratio of 90 dB. It provides 25 mA output current per channel and functions within a temperature range of -25°C to +85°C.

Feature Summary

• Provides four independent high-gain amplifiers with internal frequency compensation
• Features low power consumption compatible with single UA741 supply current requirements
• Includes Class AB output stage to eliminate crossover distortion
• Offers high isolation between amplifiers through independent biasing

Applications

• Applications requiring multiple UA741-type amplifiers
• Circuits demanding high packaging density
• Systems requiring precise amplifier matching

Procurement Notes

Verify the specific suffix against official documentation to confirm exact performance grades or package variations. Ensure the component meets RoHS compliance standards if required for your assembly process. Confirm that the SOIC-14 footprint matches your PCB design constraints before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits that require four operational amplifiers within a single package to save board space. It serves as a functional equivalent to the UA741 but offers improved input bias and offset current characteristics. Consider its 1 MHz bandwidth and 500 mV/μs slew rate for general-purpose signal conditioning tasks.

Part Context

This part belongs to the LM248 series, which consists of four independent, internally compensated, low-power operational amplifiers. The series is designed to provide functional characteristics identical to the UA741 while maintaining lower total supply current. It utilizes layout techniques to minimize thermal coupling between channels.

Replacement Considerations

LM348D: Pin-compatible alternative with similar operational characteristics.