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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR TSOT23-8
- 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 (±)：3V ~ 36V, ±1.5V ~ 18V
- Voltage - Input Offset (Max)：2.5mV @ 36V
- Current - Input Bias (Max)：0.025µA @ 5V
- Current - Output (Typ)：21mA @ 5V
- Current - Quiescent (Max)：600µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：1µs (Typ)
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Mounting Type：Surface Mount
- Supplier Device Package：TSOT-23-8
- Grade：-
- Qualification：-
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Overview
The LM393BIDDFR is a dual voltage comparator manufactured by Texas Instruments, belonging to the B-version generation of the industry-standard LM393 family. It features an ultra-small WSON-8 package with dimensions of 2 x 2 mm. The device operates from a single power supply over a wide voltage range, with a maximum rating up to 38 V and an extended temperature range. Key electrical specifications include a low input offset voltage of 0.37 mV, low input bias current of 3.5 nA, and a fast response time of 1 µsec. It offers improved ESD performance rated at 2 kV (HBM) and includes dedicated ESD clamps for enhanced ruggedness.
Feature Summary
- Ultra-small 2 x 2 mm WSON-8 package design
- Low input offset voltage of 0.37 mV
- Extended supply voltage capability up to 38 V
- Enhanced 2 kV ESD protection with dedicated clamps
Applications
- Battery-powered systems
- Temperature sensing circuits
- Supervisory control systems
Procurement Notes
Verify the specific suffix 'DDFR' against the official Texas Instruments datasheet SLCS005AE to confirm the exact tape-and-reel packaging quantity and material specifications. Ensure the component meets the required operating temperature range and that the WSON-8 footprint matches the target PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when space-constrained designs require high-performance dual comparators. The B-version offers superior electrical characteristics compared to legacy A and V grades, including lower offset and faster response. Consider the WSON-8 package for applications where board real estate is limited, while ensuring thermal management aligns with the device's power dissipation capabilities in the chosen environment.
Part Context
This part belongs to the LM393B series, representing the next-generation evolution of the classic LM393/LM2903 comparators. It serves as a drop-in replacement for previous LM293, LM393, and LM2903 variants in both A and V grades. The B-version specifically targets applications demanding higher precision, wider voltage tolerance, and improved robustness within minimal footprints.
Replacement Considerations
The LM393BIDDFR is documented as a direct drop-in replacement for the LM293, LM393, and LM2903 comparators across all standard grades.
