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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tube
- Type：Differential
- 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)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°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 KA2903D is a dual differential comparator manufactured by onsemi, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 2V to 36V single or ±1V to ±18V dual. Key electrical characteristics include a maximum input bias current of 0.25µA at 5V, a typical output current of 16mA at 5V, and a maximum static current of 2.5mA. The device features a maximum input offset voltage of 7mV at 5V and supports an operating temperature range from -40°C to 85°C.
Feature Summary
- Dual-channel differential comparison capability for signal processing applications
- Wide single and dual power supply voltage compatibility
- Low input bias current performance for high-impedance source interfacing
Applications
- Voltage monitoring circuits
- Threshold detection systems
- Over-voltage protection designs
Procurement Notes
Verify component authenticity through authorized distribution channels due to obsolete status. Confirm package integrity and pin alignment against the 8-SOIC specification before integration. Review manufacturer documentation for handling precautions related to electrostatic discharge sensitivity during assembly processes.
Selection Notes
Evaluate thermal management requirements given the 8-SOIC package constraints. Ensure supply voltage levels remain within the specified operational limits to maintain performance stability. Consider alternative active components if long-term availability is critical for the design lifecycle.
Part Context
This component belongs to the KA2903 family of comparators produced by onsemi. It serves as a legacy solution for analog signal conditioning tasks requiring precise voltage comparison. The device represents a specific iteration within the broader comparator product line, characterized by its dual-channel architecture and standard industrial temperature rating.
Replacement Considerations
Publicly confirmed substitute part numbers include LM2903DR2G, LM2903VDR2G, LM393DR2G, and NCV2903DR2G.
