LM335 precision temperature sensor
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The LM335 is a precision temperature sensor designed to operate as a precision temperature-to-voltage converter. The output voltage of the sensor is directly proportional to the absolute temperature, with a scale factor of 10mV/K. This sensor can measure temperatures from -40°C to +100°C and is suitable for a wide range of applications including temperature measurement and control systems.
Key Features:
- Precision temperature sensor with linear output
- Calibrated directly in Kelvin
- Output voltage proportional to absolute temperature: 10mV/K
- Wide operating temperature range: -40°C to +100°C
- High accuracy and stability
- Low-cost, easy-to-use
- TO-92, SOIC-8, and TO-220 packages available
- Supply Voltage: 5V to 30V
- Output Voltage Range: 2.73V at 0°C (273K) to 3.73V at 100°C (373K)
- Temperature Accuracy: ±1°C (typical)
- Temperature Coefficient: +10mV/K
- Quiescent Current: 1mA (typical)
- Operating Temperature Range: -40°C to +100°C
- Package Options: TO-92, SOIC-8, TO-220
- Temperature measurement and monitoring
- Temperature control systems
- HVAC systems
- Environmental monitoring
- Industrial temperature sensing
- Consumer electronics
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment