MCP9808
В±0.5В°C Maximum Accuracy Digital Temperature Sensor
Features Description Accuracy:
-В±0.25 (typical) from -40В°C to +125В°C
-В±0.5В°C (maximum) from -20В°C to 100В°C
-В±1В°C (maximum) from -40В°C to +125В°C User-Selectable Measurement Resolution:
-+0.5В°C, +0.25В°C, +0.125В°C, +0.0625В°C User-Programmable Temperature Limits:
-Temperature Window Limit
-Critical Temperature Limit User-Programmable Temperature Alert Output Operating Voltage Range: 2.7V to 5.5V Operating Current: 200 µA (typical) Shutdown Current: 0.1 µA (typical) 2-wire Interface: I2C™/SMBus Compatible Available Packages: 2x3 DFN-8, MSOP-8 Microchip Technology Inc.’s MCP9808 digital
temperature sensor converts temperatures between
-20В°C and +100В°C to a digital word with
В±0.25В°C/В±0.5В°C (typical/maximum) accuracy.
The MCP9808 comes with user-programmable registers
that provide flexibility for temperature sensing
applications. The registers allow user-selectable
settings such as Shutdown or Low-Power modes and
the specification of temperature Alert window limits and
critical output limits. When the temperature changes
beyond the specified boundary limits, the MCP9808
outputs an Alert signal. The user has the option of setting
the Alert output signal polarity as an active-low or activehigh comparator output for thermostat operation, or as a
temperature Alert interrupt output for microprocessorbased systems. The Alert output can also be configured
as a critical temperature output only. …