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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- 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-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM2903DRG4 is a dual differential comparator from Texas Instruments, packaged in an 8-pin SOIC. It operates on a single supply voltage ranging from 2V to 30V. The device features two independent comparators with open-collector outputs compatible with TTL, MOS, and CMOS logic families. Key electrical characteristics include a typical response time of 1.3µs for small-scale input signals and a quiescent current that remains largely independent of the supply voltage.
Feature Summary
- Dual independent voltage comparators designed for wide-range single-supply operation
- Open-collector output structure allows flexible logic interfacing and wired-AND configurations
- Common-mode input voltage range includes ground potential
Applications
- Vacuum robots
- Single phase UPS systems
- Server power supplies
- Cordless power tools
- Motor drives
Procurement Notes
Verify the specific suffix 'RG4' against the manufacturer's latest orderable addendum to confirm package details and environmental compliance status. Ensure the selected variant matches the required operating temperature range and pinout configuration for your PCB layout before finalizing procurement.
Selection Notes
Select this component when a dual-channel comparator with ground-referenced common-mode inputs is required. It serves as a direct drop-in replacement for legacy LM293, LM393, and LM2903 devices in existing designs. Consider the B-version variants 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 comparator family. It provides a cost-effective solution for general-purpose voltage comparison tasks. The device is widely utilized in industrial control and consumer electronics where reliable signal threshold detection is essential.
Replacement Considerations
The LM2903B is a next-generation version offering improved specifications such as lower offset voltage and faster response times. It can serve as a drop-in replacement for the standard LM2903 series.
