STMicroelectronics LM358AWDT

Overview

LM358AWDT from STMicroelectronics is a low-power dual operational amplifier in SO8 package, designed for single-supply operation from 3 V to 30 V. It delivers 100 dB DC 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 +5 V logic-compatible systems.

For engineers reviewing the LM358AWDT datasheet, LM358AWDT pinout, LM358AWDT application, or LM358AWDT equivalent, key selection criteria include input common-mode range including ground, temperature-compensated offset drift (7 µV/°C), ESD robustness (2 kV HBM), and compatibility with industrial ambient temperatures (0 °C to +70 °C).

Technical Context

The LM358AWDT integrates two independent high-gain op-amps with internal frequency compensation, enabling stable unity-gain operation without external components. Its PNP input stage supports input voltages down to ground and differential inputs up to full supply rails.

It operates across 3 V–30 V single supply, with supply current of 0.7 mA at 5 V and 1.2 mA at 30 V - essentially independent of supply voltage. Output can source up to 40 mA and sink up to 20 mA while maintaining 0 V to (VCC − 1.5 V) swing.

Key Specifications

Pinout & Package

LM358AWDT is housed in an SO8 (Small Outline Integrated Circuit, 8-pin) plastic package per JEDEC MS-012, with 1.27 mm pitch, 4.9 mm width, and 6.0 mm length. Thermal resistance junction-to-ambient is 125 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM358DR, LM358AWDT offers tighter offset (2 mV vs. 3 mV) and higher bandwidth (1.1 MHz vs. 0.7 MHz); versus TLV2372IDR, it trades rail-to-rail input and femtoamp bias for guaranteed operation down to 3 V and broader industrial temperature support (0–70 °C vs. −40–125 °C).

Availability

LM358AWDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, PLC analog I/O modules, and battery-powered instrumentation requiring stable component supply across production lifecycles.

Supply support for LM358AWDT 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 power management applications since 1987.

The LMx58W series targets cost-optimized, general-purpose analog signal conditioning in single-supply systems - emphasizing robustness, wide voltage range, and ease of use for industrial and consumer electronics designers.

FAQ

Is LM358AWDT pin-compatible with standard LM358 variants?

Yes - LM358AWDT uses the industry-standard SO8 pinout (1:OUT1, 2:−IN1, 3:+IN1, 4:GND, 5:+IN2, 6:−IN2, 7:OUT2, 8:VCC). It matches LM358DR, LM358N, and TL082 in physical layout and electrical pin function, enabling direct replacement in existing PCBs without redesign.

What is the maximum capacitive load LM358AWDT can drive stably?

LM358AWDT maintains phase margin >45° with ≤100 pF capacitive load at unity gain, per Figure 17 in the datasheet. For loads >100 pF, a series resistor (≥100 Ω) between output and capacitance is required to prevent peaking or oscillation - verified via SPICE simulation with typical 1.1 MHz GBP and 40° phase margin at 1 MHz.

Does LM358AWDT support true rail-to-rail output?

No - LM358AWDT output swings from 0 V to (VCC − 1.5 V) under load, as confirmed in Section 3 Electrical Characteristics (VOL = 20 mV max, VOH = 27 V max at VCC = 30 V). It reaches ground but cannot reach VCC; for full rail-to-rail output, consider TLV2372 or MCP6022 instead.

Can LM358AWDT operate from a 3.3 V supply?

Yes - the absolute minimum supply is 3 V per Table 2, and electrical characteristics are specified down to that voltage. At 3.3 V, output swing is 0 V to 1.8 V, input common-mode range is 0 V to 1.8 V, and supply current remains ~0.7 mA. Verified operation confirmed in Figure 10 (Input Voltage Range) and Figure 12 (Supply Current vs. VCC).