The MCP9800/1/2/3 family of digital temperature sensors from Microchip Technology Inc. converts temperatures between -55°C and +125°C to a digital word. They provide an accuracy of ±1°C (max.) from -10°C to +85°C. The MCP9800/1/2/3 family comes with user-programmable registers that provide flexibility for temperature sensing applications. The register settings allow user-selectable 9-bit to 12-bit temperature measurement resolution, configuration of power-saving modes, and specification of temperature alert output and hysteresis limits.
The MCP9800/1/2/3 family are 2‑wire high‑accuracy temperature sensors with selectable 9‑ to 12‑bit resolution. They operate from –55 °C to +125 °C and provide typical accuracies of ±0.5 °C at 25 °C.
The datasheet includes electrical characteristics, pin functions, timing specifications, and package options (SOT‑23‑5, MSOP‑8, SOIC‑8). It also describes the I2C/SMBus compatible interface and power‑saving modes such as shutdown and one‑shot measurement.
| Operating Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Operating Current | 200 µA typ. |
| Shutdown Current | 0.1 µA typ., 1 µA max. |
| Temperature Accuracy (12‑bit) | ±0.5 °C typ. at +25 °C |
| Resolution | User‑selectable 9‑ to 12‑bit |
| Available Packages | SOT‑23‑5, MSOP‑8, SOIC‑8 |
| Serial Port Frequency | up to 400 kHz |
They convert temperatures from –55 °C to +125 °C to a digital word.
The sensor allows user‑selectable resolution from 9‑bit to 12‑bit.
The shutdown current is 0.1 µA typical and up to 1 µA maximum.