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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8DIP
- 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-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The KA2903M is a dual differential comparator manufactured by onsemi, housed in an 8-DIP package. It operates within a supply voltage range of 2V to 36V single or ±1V to ±18V dual. Key electrical parameters include a maximum input bias current of 0.25µA at 5V, typical output current of 16mA at 5V, and maximum static current of 2.5mA. The device features a maximum input offset voltage of 7mV at 5V and functions across a temperature range of -40°C to 85°C.
Feature Summary
- Dual-channel differential comparison capability
- Open-collector output structure for flexible interfacing
- Wide single or dual power supply operation
Applications
- General purpose analog signal comparison
- Voltage level detection circuits
- Threshold sensing applications
Procurement Notes
Verify component authenticity through authorized distributors as the part is obsolete. Confirm package integrity and pin alignment against the 8-DIP specification. Check datasheet revisions for any historical parameter updates. Ensure compatibility with existing board layouts before procurement due to end-of-life status.
Selection Notes
Select this component only if legacy DIP packaging is required for through-hole mounting. Consider modern surface-mount alternatives like NCV2903DR2G for new designs. Verify that the 16mA output drive meets load requirements. Ensure operating temperatures align with the specified industrial range.
Part Context
This device belongs to the KA2903 series of dual comparators from onsemi. It shares functional similarities with industry-standard LM2903 devices but utilizes onsemi's specific manufacturing processes. The part represents a legacy solution for discrete comparator applications requiring robust performance in standard DIP packages.
Replacement Considerations
LM2903P (Texas Instruments) is listed as a direct substitute. LM393PE3 (Texas Instruments) serves as a similar alternative. LT1017IN8#PBF (Analog Devices Inc.) is another comparable option.
