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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：-
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：7mV @ 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 LM2903QS-13 is an automotive-compliant dual differential voltage comparator manufactured by Diodes Incorporated. It operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V. The device features a very low supply current drain independent of the supply voltage, with a typical value of 0.6mA at VCC=5V. It offers low input bias current (25nA typical) and low input offset current (±5nA typical). The non-A version has a typical offset voltage of 2mV. The output saturation voltage is typically 200mV at 4mA sink current. It is qualified to AEC-Q100 Grade 1 standards.
Feature Summary
- Qualified to AEC-Q100 Grade 1 for automotive applications
- Wide power supply range supporting single and split supplies
- Low supply current drain independent of supply voltage magnitude
- Output voltage compatible with TTL, MOS, and CMOS logic families
Applications
- Automotive electronic systems requiring specific change control
- Direct interfacing with TTL and CMOS logic circuits
- Precision voltage comparison in wide voltage range environments
Procurement Notes
Verify that the component matches the exact part number LM2903QS-13 and confirms the SO-8 package type. Ensure the device carries the Q suffix indicating AEC-Q100 Grade 1 qualification. Confirm the -13 suffix corresponds to the Tape & Reel packaging format as specified in the ordering information. Check for RoHS 3 compliance and Halogen/Antimony-free status if required by project specifications.
Selection Notes
Select this component when automotive reliability and AEC-Q100 Grade 1 qualification are mandatory requirements. Choose this device over standard comparators if the application demands low supply current that remains stable across varying supply voltages. Consider this part for designs requiring direct interface with TTL or CMOS outputs without additional level shifting circuitry.
Part Context
This device belongs to the LM2901Q/LM2903Q series of precision voltage comparators designed for automotive use. Unlike the quad-channel LM2901Q, this model contains two independent comparators. It shares the same automotive-grade qualification and electrical characteristics as other members of the Q-series family but differs in channel count and package availability compared to non-automotive variants.
Replacement Considerations
LM2903QTH-13 (TSSOP-8 package)
FAQ
What is the maximum differential input voltage allowed?
The differential input voltage can be up to 36V without damaging the device.
Does the common-mode input voltage include ground?
Yes, the common-mode input voltage range includes ground (0V).
