7.1.2 MCP9701A Temperature Sensor
The MCP9701A sensor with Linear Active Thermistor Integrated Circuit (IC) comprise a family of analog temperature sensors that convert temperature to analog voltage. The low-cost, low-power sensors feature an accuracy of ±2°C from 0°C to +70°C, and of ±4°C from 0°C to +70°C, while consuming 6 µA (typical) of operating current. The Voltage Output pin (VOUT) can be directly connected to the ADC input of a microcontroller. The MCP9701A temperature coefficients are scaled to provide a 1°C/bit resolution for an 8-bit ADC with a reference voltage of 5V.