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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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)：5mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：700ns
- Hysteresis：-
- Operating Temperature：0°C ~ 70°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 LM393M is a dual independent precision voltage comparator from Texas Instruments, designed for single or split supply operation. It features a wide single-supply range of 2.0 Vdc to 36 Vdc and a split-supply range of ±1.0 Vdc to ±18 Vdc. The device offers very low current drain of 0.4 mA, independent of supply voltage. Key electrical specifications include a maximum input offset voltage of 5 mV, an input bias current of 25 nA, and a typical response time of 1.3 µs. It operates within a temperature range of 0°C to +70°C and utilizes an SOIC-8 surface-mount package.
Feature Summary
- Dual differential comparators with rail-to-rail output compatibility for DTL, ECL, TTL, MOS, and CMOS logic levels
- Low power consumption with very low current drain independent of supply voltage
- Input common mode range extends to ground level, permitting single supply operation
Applications
- Consumer electronics requiring low offset voltage precision
- Automotive electronic systems
- Industrial electronics applications
Procurement Notes
Verify the specific suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging variations. Ensure the component matches the required operating temperature range and supply voltage specifications for the target design. Cross-reference the ordering information with the latest Texas Instruments documentation to avoid discrepancies in pinout or performance characteristics.
Selection Notes
Select this component when a dual comparator with low offset voltage and wide supply range is required. It is suitable for designs needing compatibility with various logic families and low power consumption. Consider the SOIC-8 package constraints and the specified operating temperature limits during circuit layout and thermal management planning.
Part Context
The LM393M belongs to the LM193/LM293/LM393/LM2903 family of low power, low offset voltage dual comparators manufactured by Texas Instruments. This series is engineered to provide high precision in voltage comparison tasks while maintaining minimal power usage. The LM393 variant specifically targets general-purpose applications where cost-effectiveness and reliability are prioritized alongside standard performance metrics.
Replacement Considerations
LM393DR
FAQ
What is the maximum input offset voltage for the LM393M?
The maximum input offset voltage for the LM393M is 5 mV.
Does the LM393M support single supply operation?
Yes, the LM393M supports single supply operation with a voltage range of 2.0 Vdc to 36 Vdc.
