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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8SOIC
- Series：-
- Mfr：onsemi
- 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 (±)：5V ~ 30V, ±2.5V ~ 15V
- 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 LM311DR2G is a single analog comparator manufactured by onsemi, housed in an SOIC-8 surface-mount package. It operates from a single power supply of 5.0 V to 30 V or split supplies up to ±15 V. Key electrical parameters include a maximum response time of 200 ns, a typical input offset voltage of 7.5 mV, and a positive supply current of 2.4 mA. The device features a complementary output capable of switching voltages up to 50 V at currents as high as 50 mA.
Feature Summary
- Capable of driving DTL, RTL, TTL, or MOS logic families due to versatile output compatibility.
- Output stage can switch loads referenced to ground, the positive supply, or the negative supply.
- Includes dedicated balance/strobe pins for offset adjustment and output control functionality.
Applications
- Driving relays, lamps, or solenoids via high-current output capability.
- Zero-crossing detector circuits interfacing with CMOS logic.
- Relay driver applications utilizing strobe capability for controlled activation.
Procurement Notes
Verify that the specific order suffix DR2G corresponds to the SOIC-8 tape and reel packaging configuration. Confirm RoHS compliance status and Pb-Free designation requirements against current manufacturing specifications. Ensure the commercial temperature range aligns with system operational constraints before finalizing procurement.
Selection Notes
Select this component when a single-channel comparator with high-voltage output switching is required. It is suitable for designs needing compatibility with standard logic families without additional level shifting. Consider the 200 ns response time for signal processing speeds and verify that the SOIC-8 footprint fits the PCB layout constraints.
Part Context
This part belongs to the LM311 series of single comparators produced by onsemi. It shares functional characteristics with the LM211 but differs in operating temperature ranges. The device is designed for general-purpose voltage comparison tasks where flexibility in power supply configuration and output drive capabilities are essential design factors.
Replacement Considerations
LM211DR2G
FAQ
How does the strobe pin function?
The strobe pin allows the user to disable the output. It should be current-driven between 3.0 mA and 5.0 mA; shorting it to ground is not recommended.
What is the maximum output current capability?
The output can switch voltages up to 50 V at output currents as high as 50 mA, enabling direct drive of loads like relays or lamps.
