LM211QDREP: High-Performance Comparator IC by Texas Instruments | Features & Applications
LM211QDREP: Texas Instruments' Precision Comparator for Industrial & Automotive Applications
Product Overview
The LM211QDREP from Texas Instruments (TI) is a military-grade, single-channel comparator designed for critical differential voltage comparison tasks. As part of TI's renowned linear comparator series, this IC delivers exceptional accuracy with a maximum input offset voltage of just 3mV ( 15V supply) and ultra-low input bias current (0.1 A max). Packaged in a space-saving 8-SOIC (3.90mm width) surface-mount format, it combines precision with industrial durability.
Key Technical Specifications
- Voltage Range: Operates from 3.5V to 30V (single supply) or 1.75V to 15V (dual supply)
- Response Time: 200ns typical propagation delay
- Output Drive: 50mA sink/source capability (Open-Collector configuration)
- Temperature Range: -40 C to +125 C (AEC-Q100 qualified for automotive use)
- CMRR: 90dB minimum (ensures noise immunity)
- Package: 8-SOIC (D) with 4.9mm footprint
Enhanced Features for Demanding Applications
1. Precision Comparison Technology
The LM211QDREP utilizes TI's proprietary bipolar process technology to achieve:
- Input offset voltage drift: 7 V/ C (max)
- Strobe-controlled input stage prevents metastability
- Built-in hysteresis for clean switching
2. Robust Industrial Design
Certified for harsh environments:
- ESD protection: 2kV HBM (Human Body Model)
- Short-circuit protected outputs
- Pb-free and RoHS compliant
Comparative Advantages Over Similar ICs
| Feature | LM211QDREP | Standard Comparators |
|---|---|---|
| Input Bias Current | 0.1 A (max) | 25 A (typical) |
| Supply Voltage | Up to 30V | Typically 5-16V |
| Temperature Range | -40 C to +125 C | 0 C to 70 C |
Application Scenarios
Automotive Systems
Battery management voltage monitoring
CAN bus signal conditioning
Overcurrent protection circuits
Industrial Control
PLC input threshold detection
Motor current sensing
Process instrumentation
Telecommunications
Signal edge detection in 5G infrastructure
Power amplifier protection circuits
Optical receiver signal conditioning
Design Considerations
PCB Layout Guidelines: 1. Place 0.1 F decoupling capacitor within 5mm of VCC 2. Use ground plane for noise reduction 3. Keep strobe lines shorter than 10cm to prevent oscillation
Thermal Management: Derate power above 85 C ambient temperature Maximum junction temperature: 150 C
Why Choose LM211QDREP?
Texas Instruments' LM211QDREP outperforms competitors with: 30% faster response than industry average 10:1 better bias current specification Military-grade reliability data available (MIL-PRF-38535)
Purchasing Information
Available through authorized distributors: MOQ: 100 units (tray packaging) Lead time: 4-6 weeks for large quantities Evaluation boards: DEM-COMPARATOR-211
Call to Action: Search 'LM211QDREP datasheet' for complete technical documentation or contact our engineering support team for application-specific design assistance. For volume pricing, request a quote today through our BOM tool integration.