LM50CIM3: High-Accuracy Analog Temperature Sensor by Texas Instruments | Buy Now
LM50CIM3: Precision Analog Temperature Sensor by Texas Instruments Features, Specs & Applications
The LM50CIM3 from Texas Instruments (TI) is a premium-grade analog temperature sensor engineered for accuracy and reliability in demanding environments. As part of TI s renowned sensor portfolio, this device delivers exceptional thermal monitoring for industrial, automotive, and consumer electronics. With its linear voltage output and robust design, the LM50CIM3 is a top choice for engineers seeking dependable temperature measurement solutions.
Comprehensive Product Details
Advanced Sensing Technology
- Type: Analog output local temperature sensor
- Temperature Range: -40 C to +125 C (operational up to 150 C)
- Output Signal: 10mV/ C linear voltage (ratiometric to supply)
- Accuracy: 3 C (at 25 C), 4 C across full range
Electrical Characteristics
- Supply Voltage: 4.5V to 10V (low-power operation)
- Current Consumption: 130 A typical (power-efficient design)
- Output Impedance: Low impedance for noise immunity
Mechanical Specifications
- Package: SOT-23-3 (TO-236-3) surface-mount
- Dimensions: 2.9mm 1.6mm 1.15mm (ultra-compact)
- Mounting: PCB-compatible SMT design
In-Depth Technical Analysis
The LM50CIM3 employs a proprietary bandgap-based sensing mechanism that maintains linearity across its entire operating range. Unlike digital sensors, its analog voltage output (Vout = 500mV + 10mV/ C T) eliminates the need for ADCs in basic systems, simplifying circuit architecture.
Performance Advantages
- Wider Range: Superior to many competitors with -40 C to 125 C sensing
- Better Accuracy: 3 C at room temperature outperforms similar analog sensors
- Faster Response: 5ms thermal time constant (typical in still air)
Industry-Leading Applications
Automotive Systems
Engine control units, battery management systems, and cabin climate monitoring benefit from the LM50CIM3's AEC-Q100 potential qualification and wide temperature capability.
Industrial Automation
Factory equipment, PLCs, and motor drives utilize its rugged design for predictive maintenance and overheating protection.
Consumer Electronics
Smart home devices, routers, and appliances leverage its small footprint for board-level thermal management.
Why Engineers Prefer LM50CIM3
- Texas Instruments Quality: Backed by TI's semiconductor expertise and global support
- Design Flexibility: Works with 5V or 3.3V systems (when scaled appropriately)
- Cost-Effective: Eliminates need for additional signal conditioning components
- Reliability: 8kV HBM ESD protection enhances durability
Comparative Advantage
When benchmarked against alternatives like the TMP36 or MCP9700, the LM50CIM3 offers:
- 20% wider temperature range than basic analog sensors
- Better voltage supply rejection ratio (0.5mV/V max)
- Smaller package than through-hole alternatives
Implementation Guide
For optimal performance:
- Place within 10mm of heat source being monitored
- Use 0.1 F bypass capacitor near supply pin
- Route output traces away from noise sources
- For precision applications, calibrate at known temperature
Purchase & Support
Available through authorized TI distributors with full datasheet support and reference designs. Volume pricing available for OEM applications.
Upgrade your thermal management system today with the LM50CIM3 the engineer's choice for analog temperature sensing excellence.