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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8SOIC
- 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)：3mV @ ±15V
- Current - Input Bias (Max)：0.1µA @ ±15V
- Current - Output (Typ)：50mA
- Current - Quiescent (Max)：6mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°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 LM211QDRG4 is a single-channel differential comparator manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 3.5 V to 30 V and draws 6 mA of quiescent current. The device features open collector and emitter outputs capable of sourcing 50 mA per channel. Key electrical specifications include a response time of 115 ns, an input offset voltage of 3 mV, and an input bias current of 75 nA. It supports a common-mode voltage range down to -14.7 V and functions reliably across an extended temperature range from -40°C to +125°C.
Feature Summary
- Integrated strobe functionality for precise signal timing control
- Dual output configuration supporting both open collector and open emitter logic levels
- Extended industrial temperature operation capability
Applications
- Automotive electronic systems requiring AEC-Q100 qualified components
- Industrial process control signal conditioning
- General-purpose analog-to-digital interface circuits
Procurement Notes
Verify the specific suffix G4 confirms lead-free RoHS compliance status with the manufacturer. Confirm the QDR designation aligns with automotive grade requirements if applicable to your design. Ensure the SOIC-8 thermal characteristics meet your board layout constraints. Cross-reference the datasheet revision date against your production timeline to ensure specification stability.
Selection Notes
Select this component when a single high-speed differential comparison with strobe control is required in a compact surface-mount form factor. The wide supply voltage range accommodates various system power rails without level shifting. Consider the 50 mA output drive capability for direct interfacing with logic families or relay drivers. Verify that the 115 ns propagation delay meets the timing requirements of your application circuit.
Part Context
This part belongs to the LMx11 family of differential comparators, which are designed for general-purpose analog switching applications. The LM211 variant specifically offers improved performance over the commercial LM111 counterpart, including wider operating temperature ranges. The QDRG4 suffix indicates a specific packaging and environmental compliance configuration provided by Texas Instruments for mass production.
Replacement Considerations
LM211DR serves as the non-automotive grade equivalent. LM211QDRQ1 is the alternative automotive-grade part number with identical functional specifications but different qualification documentation.
