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Temperature Sensors
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The Following Circuits match the search criteria selected above.
Type K Thermocouple Signal Conditioner with ±350V Protection from Accidental Contact and Cold Junction Compensation 10°C to 40°C Thermistor Thermometer 2-Channel ADC Measures Differential Temperature from Bridge Configured RTDs 2-Terminal Temperature-to-Current Thermometer Suitable for Use at the End of Long Wire Runs 2-Terminal Temperature-to-Current Thermometer Suitable for Use at the End of Long Wire Runs 2-Wire Thermistor 0°C to 100°C Temperature Transducer with 4mA to 20mA Output 50MHz Thermistor RMS to DC Converter Using 5V Supply 50MHz Thermistor RMS to DC Converter using a dual switched capacitor instrumentation building block 5V Powered Thermistor Heating/Cooling Automatic Thermostat 5V Powered, Linearized Platinum RTD 0°C to 400°C ±0.05°C Signal Conditioner A Galvanically Isolated Thermistor Digitizer Acoustic Thermometry Measures Temperature To 0.1 Degree Battery Powered (Li-Ion) Platinum RTD Signal Conditioner with Curvature Correction Bridge Reversal Eliminates 1/f Noise and Offset Drift of a Low Noise, Non-Autozeroed, Bipolar Amplifier Complete Type K Thermocouple Measurement System (I2C) with Cold Junction Compensation Complete Type K Thermocouple Measurement System (SPI) with Cold Junction Compensation Computer Voltage and Temperature Monitoring Differential Bridge Amplifier Differential Bridge Amplifier with Gain Programmed through the Serial Interface and Analog to Digital Conversion (Standby Current Less than 100μA) Full-Bridge Amplification Using a Resistor Arrays to Provide Precise Matching in Excitation Amplifier Full-Bridge Amplification Using a Single Amplifier Full-Bridge Amplification Using Autozero Amplifiers to Reduce Input Referred Noise High Resolution 0°C to 220°C Platinum RTD Temperature Digitizer using 5V Supply High Resolution Battery-Powered Robust Type K Thermocouple Signal Conditioning Amplifier with Cold Junction Compensation High Resolution Type S Thermocouple Digitizer with Improved Cold Junction Compensation High Voltage/Current and Temperature Monitoring Internal Temperature Sensor Kelvin-Sensed Temperature Sensor Amplifier for –50°C to 150°C Platinum RTD from 10V Reference Linear Thermometer Linearized Platinum Resistance Thermometer with ±0.025°C Accuracy Over 0 to 100°C Liquid-Level Indicator Measuring Seven RTD Temperatures with One Reference Resistor and One Reference Current Micropower Thermocouple Signal Conditioner with Cold Junction Compensation Motor Protection/Regulation Motor Protection/Regulation Oscillator/Reference Oven Temperature Regulation Pilot Light Flame Detector with Low-Battery Lockout using a Type R Thermocouple Platinum RTD Digitizer Accurate within 1° Over 0°C to 100°C Platinum RTD Signal Conditioner with Curvature Correction Platinum RTD Signal Conditioner with Curvature Correction Pseudodifferential Multichannel Bridge Digitizer and Digital Cold Junction Compensation Ratiometric Sensor to Pulse Width, Non-Inverting Response Remote CPU/ASIC/FPGA Temperature Sensor Remote Half Bridge Digitizer Platinum RTD with Noise Suppression on Reference RTD and Thermocouple Remote Temperature Digitizer Single 2.7V to 20V Supply Current Source for –50°C to 600°C Platinum RTD Single 5V Supply Linearized 0°C to 400°C Platinum RTD Amplifier Single 5V Supply Precision Linearized 0°C to 400°C Platinum RTD Signal Conditioner Single Supply Current Source for Platinum RTD Single Supply Type K Thermocouple Signal Conditioning Amplifier with Cold Junction Compensation Temperature Monitoring with an NTC Thermistor While Measuring Load Current and LTC4151 Supply Current Temperature To Frequency Converter Temperature to Frequency Converter Temperature-to-Frequency Converter Thermally Controlled NiCad Charger Thermistor Liquid Flowmeter Thermocouple Thermometer with Cold Junction Compensation Type K Thermocouple Signal Conditioner with ±190V Protection from Accidental Contact and Cold Junction Compensation Wet Bulb Psychrometer Wind Direction and Airflow Measurement
Type K Thermocouple Signal Conditioner with ±350V Protection from Accidental Contact and Cold Junction Compensation
A high input impedance amplifier permits the use of large valued input resistors and retains signal accuracy. This is very useful for protecting both the amplifier and cold junction compensator in thermocouple applications as the sense element can often be inadvertently connected to destructive voltage potentials. The 1MΩ resistors protect the circuit up to ±350V with no phase reversal to amplifier output. The 1pA maximum IBIAS of the LTC6081 translates to a miniscule 0.05°C temperature error with the 1MΩ input protection resistor. The ±90μV offset over the entire operating temperature range ensures a less than 2°C temperature offset. The LTC6081 is a high performance dual op amps combining excellent noise, offset drift, CMRR, PSRR and input bias current specifications. They perform in a variety of topologies without compromising performance. LTC6081 is available in 8-lead MSOP and 10-lead DFN packages.