Product Overview
STMicroelectronics LM358AN Dual Low-Power Operational Amplifier in an 8-Pin Plastic DIP
Condition
New. The photographed piece is a black 8-pin plastic DIP marked with the ST logo and three lines of laser text reading MAL, LM358AN, and 901731. The pin-one notch and dimple are both clearly formed. All eight leads are straight, bright and evenly spaced, with no bent pins, no solder on the tips and no oxidation visible. Stock of 17 is on the shelf and pieces are sold individually; the photographs show one representative piece, and markings such as the 901731 trace line can differ from one piece to the next.
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Product Overview
The LM358AN is a dual operational amplifier from STMicroelectronics in the classic 8-pin plastic DIP package, with two independent amplifier channels in one body. It is a single-supply, low-power part rated for a 0 to 70 C operating range, with a 1 MHz figure quoted for the family. The two channels share pins 4 and 8 for supply, leaving one amplifier on pins 1 through 3 and the second on pins 5 through 7, which is why this footprint has stayed in service on breadboards, sensor front ends and control boards for decades. The A suffix designates ST's tighter-specification grade of the LM358; check the exact offset and bias figures for the A grade against ST's datasheet if your design depends on them. Through-hole leads on 0.1 inch centers drop straight into perfboard, solderless breadboards and legacy PCBs without an adapter.
Key Features
- Part number: LM358AN, marked on the body along with the ST logo
- Manufacturer: STMicroelectronics
- Function: dual (2 channel) operational amplifier
- Package: 8-PDIP, 8-pin plastic dual in-line, through hole
- Supply: single supply operation
- Power: low power design
- Frequency figure quoted for the family: 1 MHz
- Operating temperature range: 0 to 70 C
- Additional body markings on the photographed piece: MAL and 901731
- Sold each, from shelf stock of 17
Applications
- Bench hobbyist breadboarding a two-stage sensor amplifier who wants both channels in one 8-pin body instead of two single op amps
- Repair technician replacing a failed dual op amp on an older through-hole control or instrument board
- Robotics builder conditioning a photodiode or thermistor signal on a single 5 V rail with no negative supply available
- Electronics instructor stocking a lab drawer with a forgiving, single-supply op amp students can wire up without a split supply
Frequently Asked Questions
Will the marking on the piece I receive match the photographs exactly?
The part number line will read LM358AN with the ST logo. The trailing trace line, shown here as 901731, and the MAL line are production markings and can vary between pieces in the same bin. If you need a specific trace code, ask before ordering and we will look.
Does this need a dual supply rail?
No. This is a single-supply part, which is the reason the LM358 family stayed popular in battery and single-rail designs. Confirm the supply voltage limits and input common-mode range for your rail against ST's datasheet before you commit a design.
What is the difference between LM358AN and a plain LM358N?
The A suffix marks ST's tighter-specification grade of the same dual op amp in the same 8-pin plastic DIP. Pinout and package are the same. If your circuit is sensitive to input offset voltage or bias current, verify the A-grade numbers against the datasheet rather than assuming parity with a standard part.
Is this a through-hole part or surface mount?
Through hole. The 8-pin plastic DIP has leads on standard 0.1 inch centers, so it plugs directly into a solderless breadboard, a DIP socket or a legacy PCB. There is no surface-mount version of this listing.
Why buy three or four of these here instead of a bag of a hundred somewhere else?
Because a dual op amp is a part you count out, not a part you stockpile. If your build needs two and a spare, buy three and stop there, rather than paying for a lot of 50 or 100 that spends the next decade in a drawer. Every piece comes from the same shelf stock of 17 here in Idaho, sold individually and photographed rather than sight unseen. Shipping is $8 flat rate and it is free once your order passes $28, so a small handful of parts still lands cheaply, and orders leave the Idaho warehouse the same or next business day.
Two amplifiers, eight pins, and a single rail - the LM358 became the op amp people reach for precisely because it asks so little of the power supply. Wire it up and let it do the quiet arithmetic behind whatever you are building next.
