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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- 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)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 105°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 LM2903EDR2G is a dual independent precision voltage comparator from onsemi, housed in an SOIC-8 surface-mount package. It operates within 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 a low input offset voltage with a maximum of 7.0 mV at 25°C and up to 15 mV across the temperature range. It draws very low current drain of 0.4 mA typical, independent of supply voltage. The operating ambient temperature range extends from -40°C to +105°C.
Feature Summary
- Dual independent comparators designed for single or split supply operation
- Input common mode range includes ground level during single supply use
- Low input bias current and low input offset voltage specifications
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
Applications
- Consumer electronics applications requiring precise voltage comparison
- Automotive electronic systems demanding extended temperature performance
- Industrial electronics utilizing general-purpose analog signal processing
Procurement Notes
Verify the specific ordering suffix 'E' corresponds to the required industrial temperature grade (-40°C to +105°C) as defined in the official datasheet. Confirm that the DR2G suffix indicates the SOIC-8 tape and reel packaging format. Ensure compliance with RoHS and Pb-Free requirements if mandated by the target assembly process.
Selection Notes
Select this component when dual comparators are needed within a compact SOIC-8 footprint. The LM2903E variant offers improved offset voltage characteristics compared to standard LM393 devices. Consider the open-collector output structure which requires external pull-up resistors for proper logic interfacing with various digital families.
Part Context
This part belongs to the LM393 series family manufactured by onsemi. The series encompasses multiple variants including LM293, LM393, LM2903, and LM2903V, differentiated primarily by temperature ranges and offset voltage specifications. The LM2903E specifically targets industrial environments requiring wider thermal stability than commercial grades.
Replacement Considerations
LM2903DR2G serves as a direct pin-compatible alternative within the same product line.
