ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：5V ~ 30V, ±2.5V ~ 15V
- Voltage - Input Offset (Max)：7mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：13mA @ 5V
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SC-74A, SOT-753
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The LM397MF/NOPB is a single general-purpose voltage comparator manufactured by Texas Instruments. It features a low input bias current and high open-loop gain, making it suitable for precision analog applications. The device operates with a wide supply voltage range and includes internal compensation to ensure stability in various configurations.
Feature Summary
- Single channel architecture designed for compact circuit layouts
- Low input bias current for minimal loading on signal sources
- Internal frequency compensation simplifies design requirements
Applications
- Precision sensing circuits
- Threshold detection systems
- Waveform generation
Procurement Notes
Verify the exact part number suffix against official Texas Instruments documentation to confirm package type and temperature rating. Ensure compatibility with existing board footprints and verify RoHS compliance status through the manufacturer's latest release notes before finalizing procurement orders.
Selection Notes
Select this component when a single comparator with low bias current is required. Consider the SOT-23 or similar small outline package constraints. Evaluate power supply requirements against the specific application voltage rails to ensure proper operation within the specified common-mode range.
Part Context
This component belongs to the LM397 family of general-purpose comparators. It serves as a legacy alternative to newer CMOS comparators, offering robust performance in analog signal processing tasks where low bias current is critical. The NOPB suffix indicates lead-free construction compliant with environmental standards.
Replacement Considerations
Consult official substitution guides for pin-compatible alternatives such as the LM393 or LM311 if higher speed or different output logic levels are needed. Verify electrical parameter overlaps carefully.
