| 摘要 |
<p>A printhead having a temperature detection circuit on its substrate capable of temperature detection with higher accuracy and at a lower cost, and a printing apparatus using the printhead. In the printhead, the temperature detection circuit is integrated on the substrate where a printhead driving circuit is integrated. The temperature detection circuit generates and amplifies a temperature-independent bandgap voltage (Vbg) as a reference voltage, generates a thermal voltage (VT) proportional to an absolute temperature, compares the thermal voltage with the reference voltage (Vref1 to Vref4), and outputs the result of comparison as digital binary data (T0). <IMAGE></p> |
