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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903QDRQ1 is a dual differential comparator from Texas Instruments, designed for automotive applications. It features an open-collector output and operates on single or dual power supplies ranging from 2V to 36V (±1V to ±18V). The device provides a typical response time of 1.3µs and a voltage gain of 100dB. It supports input bias currents up to 0.25µA at 5V and offers output currents of 20mA. Operating temperatures span from -40°C to +125°C. Packaged in an 8-SOIC format measuring 4.9 x 3.91 x 1.58mm, it meets AEC-Q100 standards.
Feature Summary
- Automotive-grade qualification compliant with AEC-Q100 standards
- Dual differential comparison capability within a compact surface-mount package
- Wide single and dual supply voltage operation range
- Open-collector outputs compatible with CMOS and TTL logic
Applications
- Fire and carbon monoxide alarm detectors
- Automotive sensor signal conditioning
- Over-voltage and under-voltage protection circuits
Procurement Notes
Verify the specific suffix against official Texas Instruments documentation to confirm exact electrical characteristics and packaging options. Ensure compatibility with automotive environmental requirements by checking the latest datasheet revisions. Confirm RoHS compliance status and moisture sensitivity level prior to integration into production assemblies.
Selection Notes
Select this component when automotive reliability and wide supply voltage ranges are required. The open-collector output facilitates interfacing with various logic families. Consider the 1.3µs response time for application speed requirements. Verify that the 8-SOIC package dimensions fit the target PCB layout constraints.
Part Context
This part belongs to the LM2903-Q1 family of dual differential comparators manufactured by Texas Instruments. It is specifically engineered for automotive environments, offering robust performance across extreme temperature conditions. The series is widely used in safety-critical systems requiring reliable analog signal comparison.
Replacement Considerations
LM2903AVQDRQ1 and LM2903QDRG4Q1 are confirmed substitutes within the same product family.
