LM211DR High-Speed Voltage Comparator for Precision Industrial and Embedded Designs

The LM211DR from Texas Instruments is a classic, industry-proven high-speed voltage comparator designed for precision threshold detection, level shifting, and signal conditioning. Known for its fast response time, wide operating voltage range, and flexible output configuration, the LM211 has remained a preferred solution in industrial, instrumentation, and embedded applications for decades.

 

Key Technical Specifications

• Device Type: High-speed voltage comparator
• Package: SOIC-8 (DR package)
• Supply Voltage Range: ±5 V to ±15 V or Single 5 V to 30 V
• Input Offset Voltage: Low offset for precise comparison
• Response Time: ~200 ns (typical)
• Output Type: Open collector output (allows wired-OR and level shifting)
• Input Common Mode Range: Wide, supports ground sensing
• Operating Temperature Range: 0°C to +70°C (commercial grade)
• Output Current Capability: Suitable for driving TTL/CMOS loads and relays

Core Features & Advantages

✔ Wide Supply Voltage Flexibility——Supports both dual-supply and single-supply operation, making it ideal for analog, digital, and mixed-signal systems.

✔ Fast Switching Performance——With a typical response time of 200 ns, LM211DR is suitable for high-speed threshold detection and pulse generation circuits.

✔ Excellent Noise Immunity——Designed for stable operation in electrically noisy industrial environments.

✔ Ground-Sensing Capability——Input common-mode range includes ground, enabling accurate low-level signal detection.

✔ Proven Industry Reliability——LM211 has been used for decades in industrial and instrumentation systems, demonstrating outstanding long-term stability.

 

Typical Application Scenarios

The LM211DR is widely used wherever precise voltage comparison and fast switching are required:

1. 🏭 Industrial Control Systems——Overvoltage/undervoltage detection；Power supply monitoring；Threshold alarms
2. 🔌 Power Management Circuits——Battery voltage monitoring；DC rail supervision；Power-fail detection
3. 📟 Instrumentation & Measurement——Signal conditioning；Waveform shaping；Zero-cross detection
4. 🖥 Embedded & Logic Systems——Level translation between analog and digital domains；Pulse and timing generation；Relay and indicator driving
5. 🚗 Automotive & Harsh Environments——Sensor signal comparison；Protection circuitry (non-automotive grade designs)

Why Source LM211DR from Sunether?

For widely used analog components like LM211DR, availability and price stability are critical for uninterrupted production. This is where Sunether delivers clear value.

1. 📦 Ready Stock Available——Sunether maintains on-hand inventory of LM211DR, supporting both sample and volume requirements without long factory lead times.
2. 💲 Strong Pricing Advantage——With a global sourcing network across America, Europe, and Asia, Sunether provides highly competitive pricing to help reduce your BOM cost.
3. 🚀 Fast Shipment——In-stock parts can be shipped the same day or next day, ensuring your production schedule stays on track.
4. ✅ 100% Original, Traceable Components——All devices supplied are authentic, quality-verified, and fully traceable.

By sourcing LM211DR from Sunether, you benefit from:

• Immediate stock availability
• Competitive global pricing
• Fast and reliable delivery
• Professional semiconductor sourcing support

Contact Sunether today for stock checks, quotations, and supply solutions for LM211DR and other essential analog components.