Texas Instruments LM358PWR

Overview

LM358PWR from Texas Instruments is a dual general-purpose operational amplifier in TSSOP-8 package, designed for single-supply or split-supply operation across 3V to 36V. It delivers 1.2MHz unity-gain bandwidth, 300µA per amplifier quiescent current, and rail-to-rail input common-mode range including ground-enabling direct low-side current sensing in power supply feedback loops.

For engineers reviewing the LM358PWR datasheet, LM358PWR pinout, LM358PWR application, or LM358PWR equivalent, this page provides verified electrical specs, validated pin functions, real-world use cases in motor control and AC inverters, and two confirmed alternative parts with documented performance trade-offs.

Technical Context

The LM358PWR implements two independent high-voltage op amps with internal RF/EMI filtering, enabling stable operation in electrically noisy environments like industrial motor drives and server PSU monitoring circuits. Its input stage supports common-mode voltage down to V– (ground in single-supply mode), eliminating level-shifting requirements for sensor interfacing.

Each amplifier features unity-gain stability, 70–140 V/mV open-loop gain, and output swing within 20mV of V– and 1.61V below V+ at 5mA load-making it suitable for precision comparator, transimpedance, and active filter configurations without external compensation.

Key Specifications

Pinout & Package

TSSOP-8 (PW) package: 3mm × 6.4mm body, 0.65mm pitch, exposed pad optional, RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual op amp applications.

Compared with LM358PWR, LM358DR offers mechanical robustness at the cost of board area, while LM2904PWR extends thermal capability without altering pinout or footprint-making it a drop-in upgrade for harsh-environment designs.

Availability

LM358PWR is available at Aetrix Electronics and suitable for motor control feedback, AC inverter voltage sensing, desktop PC power sequencing, and refrigerator compressor monitoring requiring stable component supply across industrial production cycles.

Supply support for LM358PWR 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 leader specializing in analog and embedded processing technologies, with over 50 years of op amp innovation and broad distribution infrastructure.

The LM358 family was engineered for cost-sensitive industrial and consumer applications requiring rugged, general-purpose amplification with minimal external components and wide supply flexibility.

FAQ

What is the maximum supply voltage for LM358PWR?

The LM358PWR supports a total supply voltage (V+ to V−) of up to 36V, with absolute maximum ratings specifying ±20V differential or 40V total. Operation at 36V is fully characterized across the –40°C to +85°C ambient range, making it suitable for 24V industrial systems and high-voltage DC-DC monitor circuits. Always observe recommended operating conditions and include adequate input protection if transient overvoltage is possible.

Does LM358PWR support rail-to-rail output?

No, LM358PWR does not provide rail-to-rail output swing. Its output can swing within approximately 20mV of V− (ground) and up to 1.61V below V+ at 5mA load. This limited positive swing means it cannot reach V+ in most configurations, but its ability to drive close to V− makes it well-suited for single-supply applications where low-side sensing or comparison is required.

Can LM358PWR be used as a comparator?

Yes, LM358PWR can be used as a comparator in non-critical applications due to its open-loop configuration and internal compensation. However, it lacks dedicated comparator features like internal hysteresis or fast response; slew rate is limited to 0.5V/µs and propagation delay is uncharacterized. For timing-critical or high-speed comparisons, a purpose-built comparator such as TLV3701 is recommended instead of LM358PWR.

What is the input bias current specification for LM358PWR?

The LM358PWR has a typical input bias current of –10nA and a maximum of –35nA at 25°C, with –50nA maximum over the full –40°C to +85°C operating range. This bipolar input stage bias current flows into both inputs and must be considered when designing high-impedance sensor interfaces-e.g., thermistor networks or photodiode transimpedance amplifiers-to avoid offset errors caused by voltage drop across source impedance.

Is LM358PWR pin-compatible with LM2904PWR?

Yes, LM358PWR and LM2904PWR share identical TSSOP-8 pinout, electrical connections, and package dimensions. They differ only in guaranteed operating temperature range (LM358PWR: –40°C to +85°C; LM2904PWR: –40°C to +125°C) and certain parametric limits like input offset drift. No PCB changes are required when upgrading from LM358PWR to LM2904PWR in thermally demanding applications.