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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8DIP
- Series：-
- Mfr：onsemi
- Package：Tube
- 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 @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 105°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The LM2903NG is a dual independent precision voltage comparator manufactured by onsemi. It operates from a wide single-supply range of 2.0 Vdc to 36 Vdc or split supplies of ±1.0 Vdc to ±18 Vdc. The device features very low current drain of 0.4 mA, low input bias current of 25 nA, and low input offset voltage of 5.0 mV maximum. It includes ESD clamps for ruggedness and is available in lead-free packages.
Feature Summary
- Dual independent precision voltage comparators capable of single or split supply operation
- Input common mode range extends to ground level with single supply operation
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
- ESD clamps on inputs increase device ruggedness without affecting performance
Applications
- Consumer electronics applications
- Automotive electronics applications
- Industrial electronics applications
Procurement Notes
Verify the specific package suffix 'N' corresponds to the PDIP-8 configuration required for your design. Confirm that the operating temperature range of -40°C to +105°C meets your environmental specifications. Ensure the NCV prefix is not required if automotive qualification is needed, as this part lacks it. Check RoHS compliance status for your region.
Selection Notes
Select this component when low input offset voltage is critical for precision comparison tasks. It is suitable for designs requiring compatibility with various logic families due to its versatile output stage. Consider the PDIP-8 package constraints for board space. Verify that the 0.4 mA supply current fits within your power budget constraints.
Part Context
This device belongs to the LMx93 series of dual comparators from onsemi. It shares architectural similarities with the LM393 and LM293 but offers improved offset voltage specifications. The series is designed for general-purpose voltage comparison in systems requiring low power consumption and wide supply voltage flexibility.
Replacement Considerations
LM2903DG (SOIC-8 package)
FAQ
What is the maximum input differential voltage range?
The input differential voltage range is equal to the power supply voltage.
Does the input common mode voltage range include ground?
Yes, the input common mode voltage range extends to ground level during single supply operation.
