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Product Detailed Parameters
- Description：IC COMPARATOR 1 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),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)：0.1µA @ ±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 LP211DR is a low-power differential comparator manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates on supply voltages ranging from 3.5 V to 30 V with a typical current drain of 150 µA at ±15 V. The device features a response time of 1.2 µs and provides an output drive capability of 25 mA. Electrical characteristics include a maximum input offset voltage of 7.5 mV and a wide common-mode input range. It is characterized for operation within a temperature range of -25°C to +85°C.
Feature Summary
- Low power consumption achieved through stable ion-implanted resistors
- Integrated strobe functionality to disable the output independently of inputs
- Offset balancing capability to minimize input offset voltage
- Compatible with industry-standard pinouts for LM211 and LM311
Applications
- Battery-powered electronic systems requiring minimal current drain
- Applications where fast response times are not critical
- Circuits requiring precise offset balancing or strobing control
Procurement Notes
Verify that the specific orderable part number matches the required suffix for the tape-and-reel packaging configuration. Confirm the operating temperature range aligns with system requirements, as the LP211 series is rated for -25°C to 85°C. Ensure compatibility with existing PCB footprints designed for standard SOIC-8 packages before finalizing procurement.
Selection Notes
Select this component when low quiescent current is prioritized over high-speed switching performance. The LP211 offers a significant reduction in power consumption compared to standard comparators, making it suitable for energy-constrained designs. Verify that the 1.2 µs response time meets the timing requirements of the target application.
Part Context
The LP211 is a low-power variant within the LP211/LP311 family of differential comparators. It shares the same functional architecture and pinout as the industry-standard LM211 and LM311 devices but utilizes ion-implanted resistors to reduce power consumption by approximately 30 times while maintaining comparable functionality.
Replacement Considerations
LP211D (Tube Packaging)
FAQ
How does the LP211 achieve lower power consumption?
It utilizes stable, high-value ion-implanted resistors to perform the same function as standard comparators with significantly reduced power drain.
What is the purpose of the BAL/STRB pin?
This pin allows for offset balancing to minimize input offset voltage and can be pulled low to activate the strobe feature, turning off the output regardless of input states.
