LM393DR-889564701 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM393DR is a Texas Instruments dual voltage comparator operating from 2 V to 36 V single supply or ±1 V to ±18 V dual supply. It features open-collector outputs compatible with TTL and CMOS logic families. Available in SOIC-8 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM393DR-889564701 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM393DR-889564701?
- Dual independent comparators with open-collector outputs for wired-OR configurations and direct TTL/CMOS interfacing
- Wide supply range of 2 V to 36 V single or ±18 V dual supply for versatile circuit applications
- Low input offset voltage enabling accurate threshold detection in precision voltage monitoring circuits
- SOIC-8 surface-mount package for compact PCB layout with low profile and automated assembly support
What is LM393DR-889564701 used for?
LM393DR is widely used as a voltage level detector, zero-crossing detector, and window comparator in power supply monitors, battery management circuits, and industrial threshold alarm systems. Its open-collector outputs enable direct interfacing with microcontrollers, optocouplers, and relay drivers without additional level-shifting components. The dual comparator configuration in a single SOIC-8 package is also common in motor speed feedback circuits, oscillator designs, and analog signal conditioning stages.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM393DR-889564701 datasheet?
LM393DR-889564701 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM393DR-889564701?
Compatible alternatives and drop-in replacements for LM393DR-889564701:
Comparator, 2 Func, 5000uV Offset-Max, 1300ns Response Time, BIPolar, PDSO8
Frequently Asked Questions
What supply voltage range does LM393DR support for single-supply and dual-supply circuit designs?
LM393DR operates from a single supply of 2 V to 36 V or a dual supply of ±1 V to ±18 V, making it adaptable to 3.3 V, 5 V, 12 V, and 24 V system rails commonly found in automotive, industrial, and consumer electronics comparator circuits.
How does the open-collector output of LM393DR enable wired-OR logic in multi-comparator systems?
LM393DR's open-collector outputs allow multiple comparators to share a common pull-up resistor, creating a wired-OR connection where any comparator pulling the line low asserts the logic condition. This simplifies overcurrent or over-temperature fault detection circuits monitoring 4 or more channels without additional logic gates.
For a 5 V microcontroller interrupt input, how should the LM393DR output be configured?
A pull-up resistor of 4.7 kΩ to 10 kΩ connected between the LM393DR open-collector output and the 3.3 V or 5 V rail converts the comparator output to a logic-high state, providing a clean digital signal suitable for microcontroller interrupt inputs with minimal current draw.
How does LM393DR compare to LM339 when only 2 comparator channels are needed in a design?
LM393DR provides 2 comparator channels in an SOIC-8 package versus LM339's 4 channels in a 14-pin package. For circuits needing only 2 comparisons, LM393DR saves approximately 30% board area, reducing PCB cost while maintaining identical electrical performance at the same 2 V to 36 V supply range.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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