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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：20mA
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-VSSOP
- Grade：-
- Qualification：-
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Overview
The LM2903DGKRG4 is a dual differential voltage comparator manufactured by Texas Instruments, designed for single-supply operation. It features an open-collector output compatible with TTL, MOS, and CMOS logic levels. The device operates within a supply voltage range of 2 V to 30 V and supports an ambient temperature range from -40°C to +125°C. Key electrical characteristics include a typical response time of 1.3 µs, a maximum input offset voltage of 7 mV, and a quiescent current of approximately 200 µA per comparator.
Feature Summary
- Dual independent voltage comparators designed for wide-range single-supply operation
- Open-collector outputs provide direct compatibility with various digital logic families
- Common-mode input voltage range extends to ground level
Applications
- Vacuum robots
- Single phase UPS systems
- Server power supply units
- Cordless power tools
- Wireless infrastructure equipment
Procurement Notes
Verify the specific package type (VSSOP-8) and tape-and-reel configuration against project requirements. Confirm that the standard LM2903 specifications meet the design's tolerance for offset voltage and propagation delay, as these values differ from the newer B-version devices. Ensure ESD handling procedures are followed during assembly.
Selection Notes
Select this component when a cost-effective dual comparator with ground-referenced inputs is required. It serves as a drop-in replacement for older LM293 and LM393 variants in existing designs. Consider the B-version if lower offset voltage or higher supply voltage ratings are necessary for the application.
Part Context
This part belongs to the industry-standard LMx93/LM2903 family of dual comparators. These devices are widely used in industrial and consumer electronics due to their low power consumption and ability to operate from a single power source. The DGKR suffix indicates a VSSOP-8 surface-mount package supplied in a reel format.
Replacement Considerations
The LM2903B is a next-generation version offering improved specifications such as lower offset voltage and faster response times. It functions as a drop-in replacement for the LM2903, LM293, and LM393 families.
