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Product Detailed Parameters
- Description：IC COMPARATOR 1 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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)：0.1µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：300µA
- 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 LP311DRG4 is a high-speed, differential comparator manufactured by Texas Instruments in an 8-SOIC package. It operates within a temperature range of 0°C to 70°C and supports single or dual power supplies ranging from 3.5V to 30V. Key electrical characteristics include a maximum input offset voltage of 7.5mV at ±15V, a maximum input bias current of 0.1µA at ±15V, and a maximum static current of 300µA. The device features MOS, open-collector, open-emitter, and TTL-compatible output types.
Feature Summary
- Differential input configuration for precise signal comparison
- Versatile output compatibility with MOS, open-collector, open-emitter, and TTL logic levels
- High-speed performance suitable for rapid signal processing applications
Applications
- General-purpose analog signal comparison circuits
- Voltage threshold detection systems
- Logic interface level shifting between different voltage domains
Procurement Notes
Verify the specific suffix 'G4' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the 8-SOIC package dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to 70°C aligns with your system's environmental conditions before finalizing procurement.
Selection Notes
Select this component when low input bias current and moderate speed are required for differential comparisons. The wide supply voltage range allows flexibility in system design. Consider the 8-SOIC package for surface-mount assembly needs. Verify that the output drive capabilities meet the load requirements of the subsequent circuit stage.
Part Context
This part belongs to the LP311 family of comparators, which are pin-compatible with the LM311 series but offer improved specifications such as lower input bias current. The DRG4 suffix denotes the tape-and-reel packaging format and RoHS-compliant construction, distinguishing it from other variants like the LP311DR or LP311DRE4.
Replacement Considerations
The LP311DR is a direct functional equivalent without the G4 suffix. The LM311DRG4 is a compatible alternative with slightly higher input bias current. Check datasheets for exact parameter matching before substitution.
