The MCP9802A0T-M/OTG is a digital temperature sensor capable of reading temperatures from -55°C to +125°C. Temperature data is measured from an integrated temperature sensor and converted to digital word with a user selectable 9 to 12-bit Sigma Delta Analog to Digital Converter.The MCP9802A0T-M/OTG notifies the host controller when the ambient temperature exceeds a user programmed set point. The ALERT output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the sensor is accomplished via a two-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the set point and hysteresis, and configuring the device. The MCP9802A0T-M/OTG also contains SMBus Timeout logic for improved system reliability.Small physical size, low installed cost, and ease of usemake the MCP9802A0T-M/OTG an ideal choice for implementingsophisticated temperature system management schemes in a variety of applications.
Feature
- 2-wire I²C™/SMBus Compatible Interface
- SMBus Timeout
- User Selectable 9- to 12-Bit Resolution
- ±1°C Accuracy from -10°C to +85°C
- ±2°C Accuracy from +85°C to +125°C
- Low Operating Current: 220µA (typical)
- Shutdown Mode: 1µA (max)
- Power Saving One-Shot Temperature Conversion Measurement
- Space Saving SOT-23 Package
- AEC-Q100 Qualified Grade 1
