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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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 LM2903QDR is a dual differential voltage comparator manufactured by Texas Instruments, designed for single-supply operation across a wide voltage range of 2V to 30V. It features an open-collector output compatible with TTL, MOS, and CMOS logic families. The device operates within an ambient temperature range of -40°C to +125°C and utilizes an 8-pin SOIC package measuring 4.90mm x 3.91mm.
Feature Summary
- Dual independent voltage comparators optimized for single-supply applications
- Open-collector outputs enable wired-AND functionality and logic compatibility
- Common-mode input voltage range includes ground potential
Applications
- Motor drives
- Building automation
- Factory automation & control
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current orderable addendum to confirm package type and availability. Ensure the selected variant matches the required operating temperature range and supply voltage specifications for the target application environment.
Selection Notes
Select this component when a dual comparator with ground-referenced inputs is required. Verify that the open-collector output configuration aligns with the downstream circuitry pull-up requirements. Confirm the 8-pin SOIC footprint fits the PCB layout constraints.
Part Context
This device belongs to the industry-standard LMx93/LM2903 family of dual comparators. It serves as a foundational analog switching component for signal processing and sensing circuits where low power consumption and wide supply voltage tolerance are necessary.
Replacement Considerations
LM2903BQDR
