LM311N
Voltage Comparator with 8-PDIP PackageLM311N
Voltage Comparator with 8-PDIP Package
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Manufacturer Part # : LM311N
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Package/Case: PDIP (P)-8
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Brand: Onsemi
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Product Categories : Comparators
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Series : LM311
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.






Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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LM311N DataSheet
Pricing (USD)
Quantity | Unit Price | Ext. Price |
---|---|---|
5 | $0.172 | $0.86 |
50 | $0.136 | $6.80 |
150 | $0.121 | $18.15 |
500 | $0.102 | $51.00 |
2000 | $0.094 | $188.00 |
4000 | $0.089 | $356.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Interested Parts
LM311N Description
The LM311N is a voltage comparator with open collector output from ST, designed for precision timing applications and widely used in logic circuits, power supplies, and motor controls.
Features
- Wide Range of Input Voltage: The LM311N has a wide range of input voltage, making it suitable for various applications.
- High Speed Response: It offers high speed response, allowing for fast and accurate comparisons.
- Minimal Offset Voltage: The LM311N has minimal offset voltage, ensuring precise timing and control.
Applications
The LM311N is commonly used in voltage comparators, waveform generators, pulse width modulators, and line receivers, as well as power supplies, motor control systems, analog-to-digital converters, and switching circuit applications.
Where to Use:
- Logic circuits
- Power supplies
- Motor controls
- Analog-to-digital converters
- Switching circuit applications
Manufacturer
The LM311N is manufactured by ST, a global leader in semiconductor technology. It falls under the category of linear comparators, which are designed to facilitate precise timing and control.
This product was developed to meet the growing demand for precision timing applications in various industries, where features like wide range of input voltage, high speed response, and minimal offset voltage are essential.
Packages
The LM311N comes in a PDIP-8 package. This package is designed for through-hole mounting, offering a compact and efficient solution for integrating the comparator into electronic circuits.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Number of channels | 1 | Output type | Open-collector, Open-drain |
Propagation delay time (µs) | 0.2 | Vs (max) (V) | 36 |
Vs (min) (V) | 5 | Vos (offset voltage at 25°C) (max) (mV) | 7.5 |
Iq per channel (typ) (mA) | 5.1 | Input bias current (±) (max) (nA) | 250 |
Rail-to-rail | No | Rating | Catalog |
Operating temperature range (°C) | 0 to 70 | Features | Strobe, Vos Adj Pin |
VICR (max) (V) | 34 | VICR (min) (V) | 0.5 |
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Price details
Prices listed do not include VAT.
Quantity | Unit Price |
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