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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
- Voltage - Supply, Single/Dual (±)：3.5V ~ 30V, ±1.75V ~ 15V
- Voltage - Input Offset (Max)：7.5mV @ ±15V
- Current - Input Bias (Max)：0.25µA @ ±15V
- Current - Output (Typ)：50mA
- Current - Quiescent (Max)：7.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM311PWR is a high-speed differential comparator manufactured by Texas Instruments, housed in an 8-TSSOP surface-mount package. It operates within a supply voltage range of 3.5V to 30V (single) or ±1.75V to ±15V (dual). Key electrical specifications include a maximum input offset voltage of 7.5mV at ±15V and a maximum average bias current of 0.25µA. The device features an open-collector/open-emitter output capable of sourcing up to 50mA, with a maximum static supply current of 7.5mA. It functions across a temperature range of 0°C to 70°C.
Feature Summary
- Provides strobed differential comparison functionality for precise signal threshold detection.
- Features open-collector and open-emitter outputs compatible with DTL, MOS, RTL, and TTL logic families.
- Designed for high-speed operation with low input bias current characteristics.
Applications
- Zero-crossing detectors
- Time delay circuits
- Logic level shifters
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and compliance status. Confirm that the component meets RoHS directives and EAR99 export classification requirements relevant to your region. Cross-reference the 8-TSSOP package dimensions with your PCB footprint design to ensure mechanical compatibility during assembly.
Selection Notes
Select this component when a single-channel differential comparator with strobe capability is required. Ensure the application supports the open-collector/open-emitter output topology and can accommodate the specified 50mA sink/source current limits. Verify that the operating temperature range of 0°C to 70°C aligns with the environmental conditions of the target system.
Part Context
This part belongs to the LM111/LM211/LM311 family of comparators from Texas Instruments. The 'PWR' suffix indicates the 8-TSSOP surface-mount package variant. It serves as a general-purpose analog comparator suitable for replacing older through-hole equivalents in modern compact electronic designs requiring differential input processing.
Replacement Considerations
LM311PWRE4 and LM311PWRG4 are verified equivalent parts within the same product line. These variants maintain identical functional specifications and pinouts while potentially differing in manufacturing lot details or specific compliance certifications such as lead-free status.
