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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：-25°C ~ 85°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 LP211DRG4 is a low-power differential comparator manufactured by Texas Instruments, housed in an 8-pin SOIC package. It operates from dual supplies up to ±15 V or a single supply as low as 3 V (3.5 V to 30 V range). Key electrical parameters include a typical response time of 1.2 μs, input offset voltage of 7.5 mV, and supply current under 300 μA. The device features open collector and emitter outputs capable of driving loads up to 25 mA.
Feature Summary
- Low power consumption with reduced drain suitable for battery-powered applications
- Integrated strobe capability to disable the output regardless of input states
- Offset balancing pins available to minimize input offset voltage errors
- Wide common-mode input voltage range extending below the negative supply rail
Applications
- Battery-powered electronic systems requiring minimal quiescent current
- General-purpose analog signal comparison circuits
- Threshold detection applications where fast response times are not critical
Procurement Notes
Verify that the specific orderable part number matches the required suffix for environmental compliance and packaging configuration. Confirm the operating temperature range aligns with system requirements, as the LP211 series is characterized for -25°C to 85°C. Ensure proper handling procedures are followed during assembly due to surface mount packaging constraints.
Selection Notes
Select this component when low power dissipation is prioritized over high-speed switching performance. It serves as a direct pin-compatible replacement for standard comparators like the LM211 but offers significantly lower power usage at the cost of slower response time. Suitable for designs where power efficiency outweighs the need for sub-microsecond transition speeds.
Part Context
This device belongs to the LP211/LP311 family of low-power differential comparators. It shares the same pinout and functional architecture as the industry-standard LM211 series but utilizes ion-implanted resistors to achieve a substantial reduction in power consumption. The G4 suffix indicates lead-free manufacturing compliant with RoHS standards.
Replacement Considerations
LP211D
FAQ
How does the LP211 compare to the LM211 regarding power consumption?
The LP211 consumes approximately 30 times less power than the LM211 while maintaining the same pinout and functionality.
What is the function of the BAL/STRB pin?
The BAL/STRB pin allows for offset balancing adjustments and can be pulled low to activate the strobe feature, turning off the output regardless of input conditions.
