The LM50 is a precision integrated-circuit temperature sensor that can sense a -40°C to +125°C temperature range using a single positive supply. The LM50's output voltage is linearly proportional to Celsius (Centigrade) temperature (+10 mV/°C) and has a DC offset of +500 mV. The offset allows reading negative temperatures without the need for a negative supply. The ideal output voltage of the LM50 ranges from +100 mV to +1.75V for a -40°C to +125°C temperature range. The LM50 does not require any external calibration or trimming to provide accuracies of ±3°C at room temperature and ±4°C over the full -40°C to +125°C temperature range. Trimming and calibration of the LM50 at the wafer level assure low cost and high accuracy.
| LM50 | |
| Supply Voltage (Min) (V) | 4.5 |
| Supply Voltage (Max) (V) | 10 |
| Iq (Typ) (uA) | 130 |
| Sensor Type | Local |
| Sensor Gain (mV/Deg C) | 10 |
| Local Sensor Accuracy (Max) (+/- C) | 2 |
| Output Impedance (Ohm) | 2000 |
| Pin/Package | 3SOT |
| Approx. Price (US$) | 0.32 | 1ku |
| Rating | Catalog |