LM258ADR

Overview

The LM258ADR is a dual operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It features a gain-bandwidth product of 700 kHz and a slew rate of 300 mV/us. The input offset voltage is 3 mV, with an input bias current of 80 nA. Operating from a single supply of 3 V to 32 V or dual supplies of ±1.5 V to ±16 V, it draws 350 uA of quiescent current per channel. The output can source 20 mA, offering a common-mode rejection ratio of 80 dB and an input voltage noise density of 40 nV/sqrt Hz.

Feature Summary

• Dual-channel architecture providing two independent high-gain amplifiers within a compact surface-mount footprint.
• Rail-to-rail input capability allows operation with input signals extending down to the negative supply rail.
• Designed for low-power applications with minimal quiescent current consumption per channel.

Applications

• General-purpose analog signal conditioning circuits
• Sensor interface and transducer amplification
• Active filtering and signal processing stages

Procurement Notes

Verify the specific suffix 'ADR' against the manufacturer's official documentation to confirm the tape-and-reel packaging configuration and temperature range specifications. Ensure compatibility with existing PCB footprints for the SOIC-8 package. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when a dual operational amplifier with rail-to-rail inputs is required for single-supply systems. The 700 kHz bandwidth suits low-frequency applications such as audio pre-amplification or sensor signal conditioning. Consider the 300 mV/us slew rate for moderate-speed signal transitions where power efficiency is prioritized over high-speed performance.

Part Context

This device belongs to the LM258 family of dual operational amplifiers produced by Texas Instruments. The LM258 series is characterized by its ability to operate from a wide range of single or split power supplies. The 'A' designation typically indicates improved electrical parameters compared to standard variants, while the 'DR' suffix denotes the specific reel packaging format for automated assembly.

Replacement Considerations

LM358AD: Pin-compatible alternative with similar electrical characteristics but potentially different temperature ranges. LM258N: Through-hole equivalent version of the same circuit topology. Verify pinout and electrical limits before substitution.