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Product Detailed Parameters
- Description：PROTOTYPE
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Type：Differential
- Number of Elements：1
- Output Type：Open-Collector, Open-Emitter
- 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)：20mA
- Current - Quiescent (Max)：5mA, 7.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：115ns
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The LM311P-NG is a single-channel differential voltage comparator manufactured by Texas Instruments. It features an open-collector output capable of driving TTL, MOS, DTL, RTL, and ECL logic families. The device operates with a wide supply voltage range of 5V to 30V for single supplies or ±2.5V to ±15V for dual supplies. Key electrical specifications include a maximum input offset voltage of 7.5mV at ±15V and a maximum input bias current of 0.25µA at ±15V. The component is housed in an 8-pin PDIP package.
Feature Summary
- Supports multiple logic family outputs including TTL, MOS, DTL, RTL, and ECL via open-collector configuration
- Enables flexible power supply operation across wide single and dual voltage ranges
- Provides high-speed differential comparison with strobe functionality
Applications
- Zero-crossing detection circuits
- Logic level shifting between different voltage domains
- Window comparator designs
Procurement Notes
Verify the specific manufacturer designation associated with the suffix 'NG'. While commonly linked to onsemi distribution within the LM311 family, confirm that the delivered component matches the requested datasheet specifications and pinout. Ensure the package type corresponds to the required PCB footprint before integration into the design.
Selection Notes
Select this component when a single high-speed comparator with versatile logic output compatibility is required. It is suitable for applications needing wide supply voltage flexibility and low input bias currents. Consider alternative packages if surface-mount assembly is preferred over through-hole mounting.
Part Context
The LM311 is a classic single differential comparator widely used in industrial and consumer electronics. It serves as a fundamental building block for analog-to-digital interface circuits. The device is part of a broader family that includes temperature-compensated variants like the LM211 and military-grade versions.
Replacement Considerations
LM311N
FAQ
What logic families does the LM311P-NG output support?
The open-collector output can drive TTL, MOS, DTL, RTL, and ECL logic families.
What is the maximum input offset voltage specification?
The maximum input offset voltage is 7.5mV when operated at ±15V.
