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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- 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)：-
- 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：-
- Qualification：-
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Overview
The LM2903VDG is a dual independent precision voltage comparator manufactured by onsemi. It operates from a single supply 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 7.0 mV maximum. It includes ESD clamps on inputs and is available in SOIC-8 packages.
Feature Summary
- Dual independent precision voltage comparators with wide supply range
- Low power consumption with current drain independent of supply voltage
- Input common mode range extends to ground level
- Outputs compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
Applications
- Consumer electronics
- Automotive applications
- Industrial electronics
Procurement Notes
Verify the specific suffix 'DG' indicates a lead-free package variant as per manufacturer ordering information. Confirm the extended temperature rating associated with the 'V' designation matches system requirements. Check for automotive qualification status if required, as standard variants differ from NCV prefix parts. Ensure compatibility with SOIC-8 footprint dimensions during PCB layout.
Selection Notes
Select this component when high gain and wide bandwidth are needed for precise voltage comparison. Consider the low input offset voltage for accuracy-critical designs. Verify that the open-collector output configuration suits the load requirements. Evaluate the extended temperature range capabilities against environmental operating conditions.
Part Context
This part belongs to the LMx93 series of dual comparators designed for single or split supply operation. It shares architectural similarities with LM393 and LM293 but offers improved offset voltage specifications. The series is widely used in signal processing and control circuits requiring reliable threshold detection.
Replacement Considerations
LM2903D serves as a direct pin-compatible alternative within the same family. LM2903DR2 offers the same functionality in tape and reel packaging. Cross-reference with NCV2903 for automotive-grade versions if site and control changes are necessary.
