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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 LM2903DGKR is a dual differential voltage comparator manufactured by Texas Instruments, designed for single power supply operation. It features an open-collector output compatible with TTL, MOS, and CMOS logic families. The device operates within a supply voltage range of 2V to 30V and supports a common-mode input voltage range that includes ground. Key electrical specifications include a typical response time of 1.3µs, a maximum input offset voltage of 15mV, and a quiescent current of up to 2.5mA. It functions reliably across an ambient temperature range of -40°C to +125°C.
Feature Summary
- Dual independent voltage comparators optimized for single-supply wide voltage operation
- Open-collector outputs enable wired-AND connections and compatibility with various logic families
- Common-mode input voltage range extends to ground potential
Applications
- Motor drives
- Building automation
- Factory automation & control
Procurement Notes
Verify the specific package variant (VSSOP-8) and manufacturer origin against official datasheets, as distribution sources may list conflicting manufacturers like Rohm Semiconductor for identical part numbers. Confirm RoHS compliance status and ensure the ordering suffix matches the required tape-and-reel packaging format for automated assembly processes.
Selection Notes
Select this component when a low-cost, general-purpose dual comparator is required for applications involving signal processing or sensing. Ensure the design accommodates the open-collector output requirement by providing appropriate pull-up resistors. Verify that the system's operating voltage remains within the 2V to 30V limit and that thermal management aligns with the VSSOP-8 package characteristics.
Part Context
This device belongs to the industry-standard LMx93/LM2903 family of dual comparators from Texas Instruments. It serves as a foundational analog component for voltage monitoring and threshold detection tasks. The DGKR suffix specifically denotes the VSSOP-8 surface-mount package, distinguishing it from through-hole or other small-outline variants within the same functional family.
Replacement Considerations
LM2903B is a next-generation drop-in replacement offering improved specifications such as lower offset voltage and higher supply voltage capability.
