Texas Instruments

LM2903DR  

Linear Comparators

LM2903DR Description

The LM2903DR from Texas Instruments is a dual differential comparator designed for general-purpose applications. Packaged in an 8-SOIC surface-mount format and supplied in Tape & Reel (TR), it is optimized for high-efficiency performance across a wide voltage range (2V–36V single supply, ±1V–18V dual supply). With a low quiescent current (max 2.5mA) and minimal input bias current (0.25µA @ 5V), it ensures low power consumption, making it ideal for battery-operated and energy-sensitive systems. The device features 20mA output drive capability and a max input offset voltage of 7mV @ 30V, ensuring precision signal comparison.

LM2903DR Features

• Dual Comparator Design: Two independent comparators in a single package, reducing board space and cost.
• Wide Operating Voltage: Supports 2V–36V (single supply) or ±1V–18V (dual supply), suitable for diverse power environments.
• Low Power Consumption: Quiescent current ≤2.5mA and ultra-low input bias current (0.25µA @ 5V) enhance efficiency.
• High Output Drive: 20mA sink capability for direct interfacing with logic circuits or relays.
• Robust Performance: 7mV max input offset voltage ensures accuracy in harsh conditions.
• Reliable Packaging: 8-SOIC with MSL1 (Unlimited) moisture sensitivity, ensuring long-term storage stability.
• Compliance: ROHS3 and REACH unaffected, meeting global environmental standards.

LM2903DR Applications

• Battery Management Systems: Voltage monitoring and protection due to low power draw.
• Industrial Control: Threshold detection in PLCs, motor drives, and sensor interfaces.
• Automotive Electronics: Window comparators for under/overvoltage alerts.
• Consumer Electronics: Power supply supervision in portable devices.
• Signal Conditioning: Zero-crossing detection and pulse-width modulation (PWM) generation.

Conclusion of LM2903DR

The LM2903DR stands out as a versatile, low-power dual comparator with wide voltage compatibility and high precision, making it a cost-effective solution for industrial, automotive, and consumer applications. Its robust design, compliance with environmental standards, and surface-mount packaging ensure reliability and ease of integration in modern electronic systems. Engineers favor this IC for its balance of performance, power efficiency, and compact footprint.

LM2903DR Documents

Download datasheets and manufacturer documentation for LM2903DR

PCN Assembly/Origin :

Assembly Changes 29/Mar/2021      

Datasheets :

LM193,293,393(A), 2903(V) Datasheet      

Reference Design Library :

TIDA-01519: Fire & Carbon Monoxide Alarm Detector Reference Design with Low BOM Cost      

PCN Design/Specification :

Design 25/Feb/2022       Mult Dev 27/Jul/2023