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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8TSSOP
- 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 (±)：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 LM311PW is a high-speed differential comparator manufactured by Texas Instruments, housed in an 8-TSSOP surface-mount package. It features a single channel with open-collector outputs compatible with DTL, MOS, RTL, and TTL logic families. The device operates on a supply voltage range of 3.5V to 30V (single) or ±1.75V to ±15V (dual). Key electrical specifications include a maximum input bias current of 0.25µA at ±15V, a typical response time of 0.2µs, and a maximum input offset voltage of 7.5mV at ±15V. It supports a sink current of up to 50mA and functions within a temperature range of 0°C to 70°C.
Feature Summary
- High-speed differential comparison capability with strobe functionality for precise timing control
- Versatile output compatibility supporting multiple logic families including DTL, MOS, RTL, and TTL
- Open-collector output structure allowing flexible interfacing with various digital systems
Applications
- Voltage monitoring and threshold detection circuits
- Zero-crossing detectors for AC signal processing
- Logic level shifting between different voltage domains
Procurement Notes
Verify the specific suffix 'PW' confirms the 8-TSSOP package variant during procurement. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards. Confirm that the operating temperature range of 0°C to 70°C aligns with your system's environmental conditions. Cross-reference the datasheet for any recent PCN updates regarding assembly sites or marking changes.
Selection Notes
Select this component when a high-speed comparator with strobe inputs is required in a compact surface-mount form factor. The open-collector output simplifies interface design with various logic families. Consider the 0.2µs response time for applications requiring fast switching. Ensure the power supply voltage stays within the specified 3.5V to 30V range for optimal performance.
Part Context
The LM311 series represents a family of high-speed comparators known for their versatility and wide supply voltage range. The LM311PW specifically denotes the plastic TSSOP-8 package version of this industry-standard component. It serves as a direct replacement for older through-hole variants like the LM311P in modern surface-mount designs while maintaining pin-out compatibility.
Replacement Considerations
LM311PWG4 and LM311PWRE4 are verified lead-free and tape-and-reel equivalents respectively.
