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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：1
- Output Type：DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
- Voltage - Supply, Single/Dual (±)：5V ~ 36V, ±2.5V ~ 18V
- Voltage - Input Offset (Max)：7.5mV @ ±15V
- Current - Input Bias (Max)：0.25µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：7.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- 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 LM311M is a high-speed, single-channel differential comparator manufactured by Texas Instruments. It operates within a supply voltage range of 9V to 36V and features an open-collector output compatible with CMOS and TTL logic families. The device exhibits a typical response time of 0.2 microseconds and draws a supply current of 7.5mA. Designed for surface-mount installation, it is housed in an 8-pin SOIC package measuring 4.9mm by 3.9mm with a height of 1.45mm. The component supports operation across a temperature range of 0°C to 70°C.
Feature Summary
- High-speed differential comparison capability
- Open-collector output interface
- Wide single-supply voltage operation
Applications
- General-purpose analog signal processing
- Voltage monitoring circuits
- Logic interface conversion
Procurement Notes
Verify the specific suffix against official documentation to confirm pinout compatibility and lead finish specifications. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference the manufacturer's latest datasheet to validate RoHS compliance status and any recent design changes or obsolescence notices before finalizing procurement.
Selection Notes
Select this component when a fast-acting differential comparator with open-collector outputs is required for mixed-signal environments. The wide supply voltage range allows flexibility in power system design without level shifting. Consider the thermal performance and package size constraints during integration. Verify that the input common-mode voltage requirements align with the application signals.
Part Context
This part belongs to the LM311 family of comparators, known for providing high-speed performance in a compact form factor. The 'M' suffix typically denotes the SOIC package variant. This series serves as a standard solution for applications requiring reliable voltage threshold detection and signal conditioning in industrial and consumer electronics.
Replacement Considerations
Compatible substitutes include LM311DR and LM311DRE4 from Texas Instruments. These variants share similar electrical characteristics but may differ in packaging or reel specifications. Verify functional equivalence regarding response time and supply voltage limits before substitution.
