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  • IC Temperature Sensor Accuracy Compensation with a PICmicro Microcontroller
    Microchip Technology Inc. provides a number of analog and serial-output Integrated Circuit (IC) temperature sensors. The typical accuracy of these sensors at room temperature is within one degree Celsius. However, at hot or cold temperature extremes, the accuracy decreases non-linearly. Typically
  • Interfacing the MCP9800 I2C Digital Temperature Sensor to a PICmicro Microcontroller
    offers many system-level advantages, including the integration of the sensor and signal-conditioning circuitry in a small Integrated Circuit (IC) package. The MCP9800 also has a One-shot Conversion mode that performs a single temperature measurement and then goes into power-saving Shutdown mode
  • Interfacing the TC72 SPI TM Digital Temperature Sensor to a PICmicro (R) Microcontroller
    advantages, including the integration of the sensor and signal conditioning circuitry in a small integrated circuit (IC) package. The TC72 also has an One-shot Conversion mode, which performs a single temperature measurement and then goes into power-saving Shutdown mode. The One-shot Conversion mode
  • Temperature Measurement Using RTDs
    A RTD or Resistance Temperature Detector is a passive circuit element whose resistance increases with increasing temperature in a predictable manner. In choosing one you must consider a RTDs temperature coefficient of resistance (TCR), its relative sensitivity, its accuracy and repeatability
  • Temperature Sensor Backgrounder
    and faster system clock rates. More advanced architectures result in a greater amount of circuitry on-chip. Higher system clock rates cause chips to run hotter (primarily because of energy losses from parasitic circuit effects). As a result, thermal problems arise from a larger amount of circuitry
  • Temperature Measurement Circuits for Embedded Applications
    This application note shows how to select a temperature sensor and conditioning circuit to maximize the measurement accuracy and simplify the interface to the microcontroller. Practical circuits and interface techniques will be provided for embedded applications with thermocouples, Resistive
  • Oscillator Circuits For RTD Temperature Sensors
    This application note shows how to design a temperature sensor oscillator circuit using Microchip's low-cost MCP6001 operational amplifier (op amp) and the MCP6541 comparator. Oscillator circuits can be used to provide an accurate temperature measurement with a Resistive Temperature Detector (RTD
  • Sensor Sense: Passive Infrared-Motion Sensors
    include galliumnitride, caesium nitrate, and lithium tantalate. Skin temperature is approximately 34 C, typically higher than background temperatures. As a person walks past the sensor, their higher skin temperature creates a greater charge in the pyroelectric material. An amplifier circuit boosts

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