High Precision Temperature-to-Voltage Converter

The NCT47 is linear output temperature sensor whose output voltage is directly proportional to measured temperature. The NCT47 can accurately measure temperature from –40°C to +125°C.
For the NCT47, the output voltage range is typically 100mV at –40°C, 500mV at 0°C, 750mV at +25°C, and 1.75V at +125°C. A 10mV/°C voltage slope allows for the wide temperature range. The NCT47 is packaged in space saving 3–Pin SOT–23B packages, making them ideal for space critical applications.

FEATUREs
• Wide Temperature Measurement Range: –40°C to 125°C
• High Temperature Converter Accuracy: ±2°C Max at 25°C
• Linear Temperature Slope: 10mV/°C
• 2.7V to 4.4V Operating Range
• Small 3–Pin SOT–23B Package
• Very Low Supply Current: 35µA typical

Typical Applications
• Cellular Phones
• Power Supply Thermal Shutdown
• Temperature–Controlled Fans
• Temperature Measurement / Instrumentation
• Temperature Regulators
• Consumer Electronic
• Portable Battery Powered Equipment