Texas Instruments LM358M

Overview

LM358M from Texas Instruments is a dual, low-power, internally frequency-compensated operational amplifier designed for single-supply operation from 3 V to 32 V (or ±1.5 V to ±16 V). It delivers 100 dB DC voltage gain, 1 MHz unity-gain bandwidth, 2 mV input offset voltage, and rail-to-ground output swing - enabling direct sensing of signals near ground in battery-powered sensor interfaces and industrial signal conditioning circuits.

For engineers reviewing the LM358M datasheet, LM358M pinout, LM358M application, or LM358M equivalent, this page provides verified package mapping (SOIC-8), confirmed pin functions, real-world design meaning of key specs (e.g., ground-swing output enables single-supply transducer amplification), and two validated alternative parts with documented functional and application-level differences.

Technical Context

The LM358M integrates two independent PNP-input op-amps sharing a common bias network that maintains stable 500 μA supply current across 3–32 V. Its input common-mode range includes ground, and output can swing to within 20 mV of ground at V+ = 5 V with 10 kΩ load - critical for single-supply DC-coupled amplification.

Internally compensated for unity-gain stability, it achieves temperature-compensated unity-gain crossover at 1 MHz and features temperature-compensated input bias current. The differential input voltage range equals the full supply voltage, allowing robust handling of overvoltage transients without damage.

Key Specifications

Pinout & Package

LM358M is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with 4.90 mm × 3.91 mm body size and standard 1.27 mm pitch. This surface-mount package supports automated assembly and offers thermal resistance of 189°C/W (junction-to-ambient).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual operational amplifier applications.

Compared with LM358DR, LM358M offers identical functionality but may differ in packaging material and environmental compliance; compared with LM2904DT, LM358M trades extended temperature capability for cost optimization in commercial-grade applications where 0°C to 70°C suffices.

Availability

LM358M is available at Aetrix Electronics and suitable for transducer signal conditioning, 4–20 mA current loop transmitters, and active low-pass filtering requiring stable component supply across industrial, test-and-measurement, and embedded control programs.

Supply support for LM358M includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The LM358M belongs to TI's legacy general-purpose op-amp product line, engineered for cost-sensitive, single-supply analog signal conditioning in commercial-grade applications where reliability, wide supply range, and ground-swing capability are essential.

FAQ

What is the maximum supply voltage for LM358M?

The LM358M supports a maximum single-supply voltage of 32 V or dual supplies of ±16 V. Absolute maximum ratings specify 32 V on V+, and exceeding this risks permanent damage. Operation at 30 V is typical in industrial power supply monitoring circuits, with internal protection limiting current during transient overvoltage events.

Does LM358M support rail-to-rail input and output?

The LM358M supports rail-to-ground output swing (down to within 20 mV of GND at V+ = 5 V) and input common-mode voltage range that includes ground - but not full rail-to-rail input (upper limit is V+ − 1.5 V). This makes it ideal for single-supply sensor interfaces where ground-referenced inputs are common, but unsuitable for applications requiring input signals near V+.

Can LM358M drive capacitive loads?

The LM358M can safely drive up to 50 pF in unity-gain non-inverting configuration without oscillation. Larger capacitive loads require series isolation resistance (e.g., 100 Ω) between output and load to maintain phase margin. This limitation is critical in driving long PCB traces or piezoelectric sensor cables where stray capacitance exceeds 50 pF.

What is the input offset voltage specification for LM358M?

The LM358M has a typical input offset voltage of 2 mV at 25°C, with a maximum of 7 mV over temperature (0°C to 70°C). This value directly impacts DC accuracy in precision amplification - for example, a 2-mV offset introduces 200 mV error when amplifying a 100× gain stage, necessitating calibration or trimming in high-accuracy applications.

Is LM358M pin-compatible with other dual op-amps like LM2904?

Yes, LM358M is pin-compatible with LM2904, LM258, and LM158 in SOIC-8, PDIP-8, and DSBGA-8 packages. All share identical pinout (OUTA, −INA, +INA, GND, +INB, −INB, OUTB, V+), enabling drop-in replacement in existing layouts - though LM2904 extends temperature range to −40°C, and LM158 supports military-grade operation.