STMicroelectronics LM358DT

Overview

LM358DT from STMicroelectronics is a low-power dual operational amplifier designed for single-supply operation (3–30 V), featuring 100 dB large-signal voltage gain, 1.1 MHz unity-gain bandwidth, 2 mV input offset voltage, 20 nA input bias current, and rail-to-rail output swing down to 0 V - enabling transducer signal conditioning and DC gain blocks in industrial sensor interfaces and 5 V logic-compatible systems.

For engineers reviewing the LM358DT datasheet, LM358DT pinout, LM358DT application, or LM358DT equivalent, key selection criteria include guaranteed 0 °C to 70 °C operating range, SO8 package compatibility, input common-mode range extending to ground, and output sink/source capability up to 40 mA per channel under 15 V supply.

Technical Context

This dual op-amp integrates two independent, internally frequency-compensated amplifiers with PNP input stages, enabling input common-mode voltage down to the negative rail (GND) and differential input range equal to full supply voltage. Its architecture supports stable unity-gain operation without external compensation.

DC-coupled functionality is ensured by input offset voltage ≤7 mV (typ. 2 mV) and offset drift ≤30 µV/°C, while output stage delivers 0 V to (V_CC – 1.5 V) swing into 2 kΩ loads - critical for single-supply precision amplification in analog front-ends.

Key Specifications

Pinout & Package

LM358DT is supplied in an SO8 (Small Outline 8-pin) package with standard 1.27 mm pitch, 5.0 mm × 4.0 mm body, and gull-wing leads. Thermal resistance junction-to-ambient is 125 °C/W, suitable for ambient temperatures up to 70 °C without forced cooling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM358DT, LM358DR offers identical performance at lower cost but lacks ST-specific quality documentation and traceability; LM2904DT trades minor offset voltage increase for 35 °C wider operating range and automotive qualification - critical for field-deployed equipment.

Availability

LM358DT is available at Aetrix Electronics and suitable for industrial sensor interfaces, 4–20 mA loop drivers, and audio preamplifiers requiring stable component supply across production volumes and long-lifecycle programs.

Supply support for LM358DT 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 since 1987.

LM358DT belongs to ST's legacy analog op-amp product line, engineered for cost-sensitive, high-volume applications where robustness, wide supply range, and single-supply operability are prioritized over ultra-low noise or rail-to-rail output.

FAQ

Can LM358DT operate from a single 3.3 V supply?

Yes - LM358DT is specified for 3 V minimum supply voltage. At 3.3 V, it maintains functional input common-mode range (0 V to 1.8 V) and output swing (0 V to ~1.8 V), though slew rate drops to ~0.2 V/µs and small-signal bandwidth narrows. Verify gain accuracy and settling time for your specific load and signal amplitude.

Does LM358DT support rail-to-rail output?

No - LM358DT output swings from 0 V to (V_CC – 1.5 V) under load. At 5 V supply, maximum output is ~3.5 V; at 30 V, it reaches ~28.5 V. For true rail-to-rail output, consider ST's TS912 or TLV2462, which specify 50 mV from rails.

What is the maximum capacitive load LM358DT can drive stably?

LM358DT remains stable with ≤100 pF capacitive load in unity-gain configuration. Driving larger loads (e.g., cables or ADC input capacitance >100 pF) requires isolation resistor (≥100 Ω) between output and load to prevent peaking or oscillation, as confirmed by phase margin data in Figure 18 of the datasheet.

Is LM358DT pin-compatible with LM258DT or LM2904DT?

Yes - all three are dual op-amps in SO8 packages with identical pinout (Output A, In– A, In+ A, GND, In+ B, In– B, Output B, V_CC+). However, LM258DT and LM2904DT offer wider temperature ranges (–40 to 105 °C) and tighter offset specs in A-grade versions, making them drop-in replacements where extended environmental tolerance is required.