Product Overview
LM358AM Dual Operational Amplifier from National Semiconductor - New 8-Pin SOIC, Marking Still Sharp
Condition
New, unused stock. The photographs show one device pulled from this lot for the camera: the black plastic body is marked with the National Semiconductor logo and the code 94AD on the top line, then LM over 358AM, all clearly legible. The gull-wing leads are bright and straight, evenly formed on both sides, with no solder, no flux residue, and no pad wear. The pin 1 dimple is crisp at the corner beside the marking. One shot sits the part on clear plastic wrap, the second holds it in a palm so you can see how small an 8-pin SOIC really is. Sixteen pieces are on hand and you pick the quantity.
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Product Overview
The LM358AM is National Semiconductor's dual operational amplifier in the 8-pin small-outline package, two independent general purpose op amps in a single surface-mount body. In National's part numbering the trailing M is the SOIC package code, which is what you reach for when a board has no room for the 8-pin DIP. The figures carried by this listing are high gain and operation at +/-16V split rails or 32V single supply, in 8-pin SOIC tube stock. The one device photographed above is marked with the National logo, 94AD, and LM358AM. Cross-shopped as LM358AM, LM358AMX, LM358 SOIC-8, and generically as the 358 dual op amp. Not confirmed here: gain-bandwidth product, input offset voltage, and temperature grade - verify these against the National LM358AM datasheet before you design it in.
Key Features
- Function: dual operational amplifier, two independent amplifiers per package
- Package: 8-pin SOIC surface mount, gull-wing leads, tube stock per the listing
- Supply: +/-16V dual rail or 32V single supply
- Gain: listed as high gain; the exact open-loop figure is not confirmed here
- Current: 20 mA is the figure this listing carries - confirm which parameter it applies to on the datasheet
- Top marking on the one device photographed: National Semiconductor logo, 94AD, LM358AM
- Condition: new and unused, leads bright with no solder or handling damage
- Stock: 16 pieces on hand, sold individually
Applications
- Bench technician replacing a failed dual op amp on a single-supply control or thermostat board
- Audio hobbyist laying out a compact surface-mount buffer, mixer, or active filter stage
- Instrumentation builder conditioning a sensor output before it reaches an ADC input
- Repair shop matching the original National-marked LM358AM on an existing SMD assembly instead of substituting a modern equivalent
Frequently Asked Questions
Is this the surface-mount part or the through-hole DIP?
Surface mount. This is the 8-pin SOIC with gull-wing leads, as shown in both photos. If your board is drilled for an 8-pin DIP, this package will not drop into it.
Will it run from a single supply?
The listing states 32V single supply or +/-16V split rails, which is the working range this family is known for. Check your own rail voltage and required output swing against the National LM358AM datasheet before committing the design.
Will the part I receive carry the same 94AD code as the photo?
The device photographed is marked with the National logo, 94AD, and LM358AM. Lot codes can vary inside a group of parts, so we will not promise an exact code match - the part number marking is what we are selling to. If a specific code matters for your build, ask before you order and we will look at what is on the shelf.
I only need two of these. Do I have to buy a tray of a hundred somewhere else?
No. Sixteen are on the shelf here and you buy the number you actually need, whether that is one to finish a repair or a handful to keep as spares for a small production run. That is the whole point of a counter that sells by the piece instead of by the reel. Shipping is a flat $8, free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
The 358 became the op amp that ended up everywhere - chargers, thermostats, machine panels - because it asked for one supply rail and no ceremony. Two channels, eight pins, and a National logo still readable under a bright light: put it down on your board and let it get back to work.
