Texas Instruments LM258AP

Overview

LM258AP from Texas Instruments is a dual operational amplifier optimized for industrial and consumer applications operating from 3 V to 32 V supply, featuring 5 mV maximum input offset voltage at 25°C, 0.7 MHz unity-gain bandwidth, and rail-to-rail output swing capability near ground-enabling direct sensor interfacing in motor control feedback loops and power supply error amplifiers.

For engineers reviewing the LM258AP datasheet, LM258AP pinout, LM258AP application, or LM258AP equivalent, this page delivers verified electrical specifications, SOIC-8 package mapping, temperature range validation (–25°C to +85°C), and two confirmed alternative parts with documented functional and parametric differences for cost-sensitive analog signal conditioning designs.

Technical Context

The LM258AP implements a classic voltage-feedback op amp architecture with internally compensated dominant-pole response, supporting stable unity-gain operation without external compensation. Its input stage uses PNP transistors enabling common-mode input voltage down to the negative rail, critical for single-supply transducer signal conditioning.

Output stage employs Class AB push-pull configuration delivering ±20 mA short-circuit current per channel and 1.5 V minimum swing from negative rail at 1 mA load-supporting direct interface with comparators, ADC drivers, and low-side current-sense amplifiers across its full –25°C to +85°C operating range.

Key Specifications

Pinout & Package

LM258AP is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with 4.90 mm × 3.90 mm body size and standard 1.27 mm lead pitch - compatible with automated PCB assembly and legacy through-hole footprint adapters.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM258AP, LM358P trades offset accuracy for lower cost in benign environments, while LM258A delivers superior DC precision at identical thermal and packaging specs-making LM258AP the balanced choice for uncalibrated industrial use cases requiring guaranteed 5 mV performance across –25°C to +85°C.

Availability

LM258AP is available at Aetrix Electronics and suitable for motor control feedback, power supply error amplification, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for LM258AP 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 manufacturing scale.

The LM258 series belongs to TI's industry-standard dual op amp product line designed specifically for cost-sensitive industrial, appliance, and power management applications requiring robust performance across extended temperature ranges.

FAQ

What is the maximum supply voltage for LM258AP?

The LM258AP supports a maximum supply voltage of 32 V across its V+ and V– pins, as specified in the Absolute Maximum Ratings table. This rating applies to both single-supply (e.g., 0 V to 32 V) and split-supply (e.g., ±16 V) configurations. Exceeding 32 V risks permanent damage, and operation above 30 V requires verification of power dissipation limits per thermal data in the datasheet. The LM258AP is rated for 3 V to 32 V recommended operating range.

Does LM258AP include EMI filtering?

No, the LM258AP does not include integrated EMI or RF filtering. Unlike the B-version devices (e.g., LM358B), the LM258AP lacks internal EMI suppression circuitry. Its ESD protection meets HBM ±500 V per JEDEC JS-001, but external filtering (e.g., ferrite beads, RC networks) is required for noisy industrial environments. This distinction is confirmed in TI's Device Comparison Table where "Integrated EMI Filter" is marked "No" for LM258 and LM258A.

What is the input bias current specification for LM258AP?

The LM258AP has a typical input bias current of –20 nA and a maximum of –250 nA at 25°C, with worst-case –500 nA across its full operating temperature range (–25°C to +85°C). These values apply to both inputs and reflect PNP-input-stage behavior. The bias current flows *into* the device, making it suitable for high-impedance sensor interfaces where leakage-induced errors must remain below 100 µV across 10 MΩ source impedances.

Can LM258AP drive capacitive loads?

Yes, the LM258AP is stable driving capacitive loads up to 100 pF, as confirmed in the Electrical Characteristics table under "CLOAD". This capability supports direct connection to ADC input capacitors, long PCB traces, and filter networks without external isolation resistors. For loads exceeding 100 pF, a series resistor (≥100 Ω) between output and capacitance is required to maintain phase margin and prevent peaking or oscillation.

Is LM258AP pin-compatible with LM358P?

Yes, LM258AP is pin-compatible with LM358P in the SOIC-8 package: both share identical pin functions (OUT1, IN1–, IN1+, V–, IN2+, IN2–, OUT2, V+) and mechanical footprint. However, LM258AP operates over –25°C to +85°C, while LM358P is rated only from 0°C to 70°C. System-level validation is required if substituting in temperature-critical applications outside the 0–70°C window.