LM2903DR Texas Instruments In Stock
LM2903DR is a dual differential comparator from Texas Instruments, featuring low supply current of 0.4mA, wide supply voltage range from 2V to 36V (or ±1V to ±18V), and open-collector outputs. Ideal for battery-powered equipment, window comparators, and industrial signal conditioning applications.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.0930(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM2903DR?
- Dual independent comparators in a single package
- Ultra-low supply current: 0.4mA typical
- Wide supply voltage range: 2V to 36V single or ±1V to ±18V dual
- Open-collector outputs compatible with various logic families
- Input common-mode range includes ground
- Industry-standard SOIC-8 (DR) package for compact PCB design
What is LM2903DR used for?
LM2903DR is widely used in battery management systems for low-power voltage monitoring and threshold detection. It serves industrial automation for signal conditioning and window comparator circuits. Common applications include motor control feedback, zero-crossing detection, and level-shifting in consumer electronics and automotive systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for LM2903DR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range for LM2903DR?
The LM2903DR operates from a single supply voltage of 2V to 36V, or a dual supply of ±1V to ±18V. This wide range makes it suitable for both 3.3V/5V digital systems and higher-voltage industrial applications.
What type of output does the LM2903DR use?
The LM2903DR uses open-collector outputs, which means they can be pulled up to any compatible logic voltage level. This allows direct interfacing with TTL, CMOS, and other logic families, as well as driving LEDs or relays directly.
What are typical applications for the LM2903DR?
Typical applications include window comparators, zero-crossing detectors, battery voltage monitoring, motor speed control, signal level detection, and threshold comparators in industrial and consumer equipment. Its low power consumption makes it ideal for portable and battery-operated devices.
What is the package type of LM2903DR and what does 'DR' stand for?
The 'DR' suffix in LM2903DR denotes the SOIC-8 (Small Outline Integrated Circuit) surface-mount package with 8 pins and a tape-and-reel packaging option. This compact package is well suited for high-density PCB designs.
Is LM2903DR a drop-in replacement for LM393?
Yes, the LM2903DR is functionally equivalent and pin-compatible with the industry-standard LM393 dual comparator. It can serve as a direct replacement in most applications, though users should verify supply voltage and output characteristics against their specific design requirements.
Related Guides
MCP2551-E/SN CAN Transceiver Board Validation Guide
Validate MCP2551-E/SN CAN boards through logic checks, termination measurements, timing budgets, and repeatable harness tests.
Nov 1, 2026
How to Choose a GRM185B31C105KE43D MLCC: Selection and Procurement Guide
Select and source GRM185B31C105KE43D MLCCs using bias, voltage, temperature, package, and traceability checks across four catalog candidates.
Nov 1, 2026
GRM185B31C105KE43D MLCC Design and Validation Guide
Validate GRM185B31C105KE43D decoupling with effective-capacitance budgets, rail tests, layout checks, and controlled replacement reviews.
Oct 31, 2026
LMR36015FBRNXR Selection Guide: Variants, Ratings and Procurement
Select LMR36015FBRNXR by input range, load margin, exact suffix, packaging and traceability; compare five related buck-converter candidates.
Oct 31, 2026
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2037 | $0.20 |
| 16+ | $0.1645 | $2.63 |
| 35+ | $0.1500 | $5.25 |
| 51+ | $0.1200 | $6.12 |
| 200+ | $0.1050 | $21.00 |
| 250+ | $0.0930 | $23.26 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”