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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SO
- Series：-
- Mfr：Diodes Incorporated
- 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)：2mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1.7mA
- 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-SO
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903AQS-13 is an automotive-compliant dual differential voltage comparator manufactured by Diodes Incorporated. It operates from a single supply of 2V to 36V or split supplies of ±1V to ±18V. The device features very low supply current drain independent of voltage, with a typical value of 0.6mA at 5V. It offers low input bias current (25nA) and exceptionally low input offset voltage for the A-grade variant (typical 1mV). The output is compatible with TTL, MOS, and CMOS logic families.
Feature Summary
- Qualified to AEC-Q100 Grade 1 standards for automotive applications
- Low input offset voltage specification of 1mV typical for A-grade devices
- Supply current remains stable regardless of power supply magnitude
- Open-collector outputs allow direct interfacing with various logic families
Applications
- Automotive sensor signal conditioning
- Voltage monitoring circuits
- Logic level translation between different voltage domains
- Window comparator implementations
Procurement Notes
Verify that the specific ordering suffix matches the required package type, as the LM2903AQS-13 designation corresponds to the SO-8 package in the official datasheet. Confirm compliance with RoHS and halogen-free requirements if environmental specifications are critical for the assembly process. Ensure the component grade meets the necessary automotive qualification standards.
Selection Notes
Select this component when low input offset voltage is critical for precision comparison tasks within automotive environments. The A-suffix indicates tighter offset voltage tolerances compared to standard variants. Consider the open-collector output structure when designing pull-up resistor networks for the target logic voltage levels.
Part Context
This part belongs to the LM2901Q/LM2903Q series of comparators designed specifically for automotive use. While similar to commercial LM2903 parts, it includes enhanced reliability testing and manufacturing controls required for automotive electronics. The 'A' suffix denotes improved electrical performance regarding input offset voltage.
Replacement Considerations
LM2903QS-13: Standard grade version with higher offset voltage. LM2903AQTH-13: Alternative TSSOP-8 package option.
