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Part Details for LM393N by STMicroelectronics
Results Overview of LM393N by STMicroelectronics
- Distributor Offerings: (15 listings)
- Number of FFF Equivalents: (8 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM393N Information
LM393N by STMicroelectronics is a Comparator.
Comparators are under the broader part category of Amplifier Circuits.
Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.
Price & Stock for LM393N
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | Min Qty: 7 | 1652 |
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$0.2100 / $0.7500 | Buy Now |
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Bristol Electronics | 450 |
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RFQ | ||
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 1180 |
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$0.2600 / $1.0000 | Buy Now |
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 360 |
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$0.5520 / $1.1040 | Buy Now |
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 152 |
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$0.3750 / $0.7500 | Buy Now |
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 140 |
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$0.7000 / $1.4000 | Buy Now |
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 120 |
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$0.5520 / $1.1040 | Buy Now |
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Quest Components | DUAL COMPARATOR, 9000 UV OFFSET-MAX, 1400 NS RESPONSE TIME, PDIP8 | 1 |
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$0.6624 | Buy Now |
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DISTI #
SMC-LM393N
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Sensible Micro Corporation | Voltage Comparator, Dual, 8 Pin, Plastic, Dip RoHS: Not Compliant Min Qty: 25 Lead time: 0 Weeks, 1 Days Date Code: 2000+ Container: Tubes | 19 |
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$0.7290 / $0.7897 | RFQ |
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Velocity Electronics | Our Stock | 59 |
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RFQ |
Part Details for LM393N
LM393N CAD Models
LM393N Part Data Attributes
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LM393N
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
LM393N
STMicroelectronics
Low power dual voltage comparator
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | DIP | |
| Package Description | ROHS COMPLIANT, PLASTIC, DIP-8 | |
| Pin Count | 8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | STMicroelectronics | |
| Amplifier Type | COMPARATOR | |
| Average Bias Current-Max (IIB) | 0.4 µA | |
| Bias Current-Max (IIB) @25C | 0.25 µA | |
| Input Offset Voltage-Max | 9000 µV | |
| JESD-30 Code | R-PDIP-T8 | |
| JESD-609 Code | e3 | |
| Length | 9.27 mm | |
| Neg Supply Voltage Limit-Max | ||
| Neg Supply Voltage-Nom (Vsup) | ||
| Number of Functions | 2 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Type | OPEN-COLLECTOR | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | DIP | |
| Package Equivalence Code | DIP8,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | IN-LINE | |
| Qualification Status | Not Qualified | |
| Response Time-Nom | 1300 ns | |
| Seated Height-Max | 5.33 mm | |
| Supply Current-Max | 2.5 mA | |
| Supply Voltage Limit-Max | 36 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | NO | |
| Technology | BIPOLAR | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Pitch | 2.54 mm | |
| Terminal Position | DUAL | |
| Width | 7.62 mm |
Alternate Parts for LM393N
This table gives cross-reference parts and alternative options found for LM393N. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM393N, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
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| LM393N/A+ | Texas Instruments | Check for Price | IC,VOLT COMPARATOR,DUAL,BIPOLAR,DIP,8PIN,PLASTIC | LM393N vs LM393N/A+ |
| LM393N | Texas Instruments | Check for Price | DUAL COMPARATOR, 9000uV OFFSET-MAX, 1300ns RESPONSE TIME, PDIP8, PLASTIC, DIP-8 | LM393N vs LM393N |
| LM393N | Motorola Semiconductor Products | Check for Price | Comparator, 2 Func, 9000uV Offset-Max, 1300ns Response Time, BIPolar, PDIP8, PLASTIC, DIP-8 | LM393N vs LM393N |
| LM393N | KEC | Check for Price | Comparator, 2 Func, 5000uV Offset-Max, 1400ns Response Time, PDIP8, DIP-8 | LM393N vs LM393N |
| LM393N/NOPB | National Semiconductor Corporation | Check for Price | IC DUAL COMPARATOR, 9000 uV OFFSET-MAX, 1300 ns RESPONSE TIME, PDIP8, LEAD FREE, PLASTIC, DIP-8, Comparator | LM393N vs LM393N/NOPB |
| LM393N | Signetics | Check for Price | Comparator, 9000uV Offset-Max, 1300ns Response Time, BIPolar, PDIP8, | LM393N vs LM393N |
| LM393N | Philips Semiconductors | Check for Price | Comparator, 2 Func, 9000uV Offset-Max, 1300ns Response Time, BIPolar, PDIP8, | LM393N vs LM393N |
| LM393N | Fairchild Semiconductor Corporation | Check for Price | Comparator, 2 Func, 9000uV Offset-Max, 1400ns Response Time, BIPolar, PDIP8, DIP-8 | LM393N vs LM393N |
Resources and Additional Insights for LM393N
Reference Designs related to LM393N
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Alarm tone generator reference design
This reference design provides a way of generating alarms similar to as described in the IEC60601-1-8 standard for medical devices. The critical timing parameters are programmable through firmware. All parameters: including pulse width: pulse rate: internal frequency: pulse rise time: volume control: and priority: are controlled using firmware. The analog envelope is generated by a combination of the MSP430FR2311 and analog circuitry.
LM393N Frequently Asked Questions (FAQ)
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The maximum voltage that can be applied to the input pins is the supply voltage (VCC) + 0.3V. Exceeding this voltage can cause damage to the device.
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To ensure a stable output, add a small capacitor (e.g., 10nF) between the output pin and ground to filter out high-frequency noise. Additionally, ensure the input signals are clean and free from noise.
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The minimum input voltage difference required for the comparator to switch is typically around 1-2mV, but this can vary depending on the specific application and noise conditions.
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No, the LM393N is a comparator, not an amplifier. It is designed to compare two input voltages and output a digital signal indicating which input is higher. It is not suitable for amplifying signals.
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To protect the LM393N from EMI, use a shielded enclosure, keep the input and output traces short, and add a ferrite bead or common-mode choke to the power supply lines.