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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8DIP
- Series：-
- Mfr：onsemi
- Package：Tube,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 ~ 125°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 LM2903VN is a dual independent precision voltage comparator manufactured by onsemi. It operates from a single supply ranging from 2.0 Vdc to 36 Vdc or split supplies of ±1.0 Vdc to ±18 Vdc. The device features a very low current drain of 0.4 mA, independent of supply voltage. Input offset voltage is specified at a maximum of 7.0 mV at 25°C and 15 mV over the temperature range. The input common mode voltage range extends to ground level. Output saturation voltage is typically 150 mV with a sink current of 4.0 mA. The package is PDIP-8.
Feature Summary
- Dual independent precision voltage comparators designed for wide single or split supply operation
- Input common-mode voltage range includes negative rail even with single supply
- Outputs compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
- Internal ESD clamps increase device ruggedness without affecting performance
Applications
- Consumer electronics circuits
- Automotive applications requiring site and control changes
- Industrial electronics systems
Procurement Notes
Verify the specific suffix 'VN' corresponds to the PDIP-8 package configuration in official ordering tables. Confirm RoHS compliance status as standard packages may vary. Check for automotive qualification requirements if deploying in NCV prefix designated environments. Ensure operating temperatures align with the -40°C to +105°C range specified for this variant.
Selection Notes
Select this component when low input offset voltage is critical for precision comparison tasks. The open-collector output allows flexible interfacing with various logic families. Consider the wide differential input voltage range equal to the power supply voltage for robust signal handling. Verify that the required response time meets system timing 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 widely used in general-purpose analog switching and threshold detection applications across multiple industries.
Replacement Considerations
LM2903N serves as a direct pin-compatible alternative within the same family. LM2903D provides the same electrical characteristics in an SOIC-8 surface mount package. Cross-reference with LM393 variants if higher volume availability is needed, noting potential differences in offset voltage specs.
