STMicroelectronics LM258WPT

Overview

LM258WPT from STMicroelectronics is a low-power dual operational amplifier in TSSOP8 package, designed for single-supply operation from 3 V to 30 V, featuring 1.1 MHz unity-gain bandwidth, 100 dB large-signal voltage gain, and rail-to-rail output swing down to 0 V - enabling direct interface with +5 V logic systems in transducer signal conditioning and DC gain blocks.

For engineers reviewing the LM258WPT datasheet, LM258WPT pinout, LM258WPT application, or LM258WPT equivalent, key selection criteria include input offset voltage (2 mV max), supply current per amplifier (0.6 mA typ at 5 V), input bias current (20 nA typ), common-mode input range extending to ground, and guaranteed operation from –40 °C to +105 °C.

Technical Context

The LM258WPT integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation without external components. Its input stage uses PNP transistors to achieve input common-mode voltage range including ground and differential input voltage range equal to the full supply rail.

Output stage supports rail-to-rail sinking (down to 0 V) and sourcing up to (V_CC+ – 1.5 V), with 40 mA typical short-circuit current limit and thermal shutdown protection. ESD robustness is rated at 2 kV HBM, and device behavior remains stable across temperature (–40 °C to +105 °C) and supply voltage (3–30 V).

Key Specifications

Pinout & Package

TSSOP8 (Thin Shrink Small Outline Package), 8-pin, surface-mount, 3.0 mm × 4.4 mm body, 0.65 mm pitch, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM2904WDT and TLV2372IDR, the LM258WPT uniquely balances 30 V supply tolerance, 2 mV offset, and TSSOP8 footprint - making it optimal for space-constrained industrial and automotive modules requiring proven reliability across wide voltage and temperature ranges without CMOS fragility or bipolar bandwidth trade-offs.

Availability

LM258WPT is available at Aetrix Electronics and suitable for transducer amplification, industrial sensor interfaces, and portable medical instrumentation requiring stable component supply with guaranteed long-term manufacturability and automotive-grade traceability.

Supply support for LM258WPT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering silicon solutions for automotive, industrial, and consumer markets with emphasis on energy efficiency, reliability, and environmental compliance.

The LM258WPT belongs to ST's precision analog portfolio targeting cost-sensitive, high-volume industrial and automotive signal conditioning - engineered for single-supply simplicity, wide voltage operation, and robustness in harsh environments.

FAQ

What is the maximum operating junction temperature for LM258WPT?

The LM258WPT has a maximum junction temperature (T_j) of 150 °C, with thermal resistance junction-to-ambient (R_thJA) rated at 120 °C/W for the TSSOP8 package. Derating is required above +105 °C ambient; continuous operation at full 30 V supply and 40 mA output load must ensure board-level thermal design keeps T_j ≤ 150 °C.

Can LM258WPT drive a 10 kΩ load to rail in single-supply mode?

Yes - the LM258WPT guarantees output swing to 0 V (sinking) and up to (V_CC+ – 1.5 V) (sourcing) into 10 kΩ loads at room temperature. At V_CC+ = 5 V, this yields 0 V to 3.5 V swing; at V_CC+ = 30 V, it delivers 0 V to 28.5 V, meeting rail-to-rail requirements for most ADC interfacing tasks.

Is LM258WPT pin-compatible with LM2904 or LM358 variants?

No - LM258WPT uses TSSOP8 (0.65 mm pitch), while standard LM2904/LM358 are in SO8 (1.27 mm pitch) or MiniSO8 (0.65 mm pitch but different pad layout). Pin numbering matches the industry-standard dual-opamp configuration (1–8), but physical footprint and solder mask requirements differ; PCB redesign is required for substitution.

Does LM258WPT support operation with V_CC+ = 3.3 V?

Yes - the LM258WPT is fully specified from 3 V to 30 V. At 3.3 V, it maintains 1.1 MHz unity-gain bandwidth, 100 dB open-loop gain, and rail-to-rail output swing (0 V to 1.8 V), enabling direct use with 3.3 V microcontrollers and low-voltage sensors without level shifters or boost converters.