Texas Instruments LM358BP

Overview

LM358BP 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 features 1 MHz unity-gain bandwidth, 100 dB large-signal voltage gain, and rail-to-rail output swing down to ground-enabling direct interfacing with sensors and microcontrollers in battery-powered industrial signal conditioning systems.

For engineers reviewing the LM358BP datasheet, LM358BP pinout, LM358BP application, or LM358BP equivalent, key selection considerations include its input common-mode range extending to ground, low 500 µA supply current per amplifier, 2 mV max input offset voltage, and compatibility with 3.3-V digital logic interfaces without level-shifting.

Technical Context

The LM358BP uses a PNP-input stage enabling true ground-sensing capability and input common-mode voltage range that includes 0 V-even when powered from a single supply. Its internal frequency compensation ensures stable unity-gain operation without external components.

Each amplifier provides independent sourcing and sinking output current (up to 40 mA sink, 20 mA source), with output voltage swing within 20 mV of ground and up to 26 V (at V+ = 30 V) into 10-kΩ load-supporting both DC-coupled transducer amplification and active filter design.

Key Specifications

Pinout & Package

LM358BP is packaged in an 8-pin PDIP (Plastic Dual In-line Package) with 9.81 mm × 6.35 mm body size, suitable for through-hole prototyping and industrial PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM358DR and TLV2372IDR, the LM358BP offers superior power handling and through-hole manufacturability for legacy industrial hardware, while retaining compatibility with 3.3-V microcontrollers via its ground-sensing inputs and rail-to-ground output-making it optimal for cost-sensitive, mixed-voltage embedded systems requiring long-term component availability.

Availability

LM358BP is available at Aetrix Electronics and suitable for industrial sensor interfaces, 4–20 mA transmitter circuits, and microcontroller analog front-ends requiring stable component supply across extended product lifecycles.

Supply support for LM358BP 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The LM358BP belongs to TI's legacy general-purpose op-amp product line, engineered for robustness, wide supply flexibility, and ease of use in cost-sensitive industrial signal conditioning and power-supply monitoring applications.

FAQ

What is the maximum supply voltage rating for LM358BP?

The LM358BP has an absolute maximum supply voltage rating of 32 V for single-supply operation (or ±16 V for dual supplies). Exceeding this limit risks permanent damage. Recommended operating range is 3 V to 32 V, with stable performance across this span. The LM358BP maintains consistent gain, bandwidth, and output drive capability throughout this range-making it ideal for systems where supply rails may vary, such as 24-V industrial controls with line transients.

Does LM358BP support rail-to-rail input or output operation?

The LM358BP supports rail-to-ground output swing (down to 0 V) but does not offer rail-to-rail input capability. Its input common-mode voltage range extends from ground (0 V) to V+ −1.5 V, meaning the upper input limit is 1.5 V below the positive rail. This allows direct sensing of 0-V-referenced signals but requires attention when interfacing with signals near V+. The LM358BP output can drive loads to within 20 mV of ground and up to 26 V (at V+ = 30 V) into 10-kΩ-critical for ADC interfacing and comparator applications.

Can LM358BP be used with a 3.3-V supply?

Yes, the LM358BP operates reliably from a 3.3-V single supply. Its minimum recommended supply is 3 V, and all key specifications-including 1 MHz bandwidth, 100 dB gain, and ground-sensing inputs-are guaranteed across this range. At 3.3 V, the output swing reaches approximately 0 V to 1.8 V (V+ −1.5 V), sufficient for driving 3.3-V-tolerant ADCs and logic. The LM358BP's 500 µA supply current per amplifier also makes it well-suited for battery-powered 3.3-V systems where efficiency matters.

What is the input bias current specification for LM358BP?

The LM358BP exhibits a typical input bias current of 45 nA at 25°C (max 250 nA over temperature), flowing *out* of both inputs due to its PNP input stage. This outward current simplifies biasing in high-impedance sensor circuits-no pull-up/pull-down resistors are needed to counteract conventional NPN-input leakage. The LM358BP's low and temperature-stable bias current ensures minimal voltage drop across high-value source impedances (e.g., 100-kΩ thermistor networks), preserving measurement accuracy without calibration.

Is LM358BP pin-compatible with other dual op-amps like NE5532 or OP27?

No, the LM358BP is not pin-compatible with NE5532 or OP27. It follows the industry-standard 8-pin DIP/SOIC op-amp pinout (OUTA, −INA, +INA, GND, +INB, −INB, OUTB, V+), whereas NE5532 uses a different pin assignment (e.g., V− on Pin 4, V+ on Pin 8) and OP27 has offset-null pins. Substituting LM358BP for either requires PCB layout changes. The LM358BP is functionally and pin-compatible with LM358, LM2904, and other members of the LMx58-N family-ensuring seamless replacement within that lineage.