Patent ID: 8456343

Claim:
A switched capacitor type D/A converter configured to receive m-bit (m represents an integer) input data, and to output an analog signal that corresponds to the value of the input data, the switched capacitor type D/A converter comprising: m switch circuits provided to respective bits of the input data, each switch circuit comprising a first switch group and a second switch group, each switch in the first switch group being on state when the corresponding bit of the input data is 1 and being off state when the corresponding bit of the input data is 0, each switch in the second switch group being on state when the corresponding bit of the input data is 0 and being off state when the corresponding bit of the input data is 1; a first inverter configured to output a gate signal to each switch in the first switch group; and a second inverter configured to output a gate signal to each switch in the second switch group, wherein each switch in the first switch group and the second switch group is configured as a P-channel MOSFET (Metal Oxide Semiconductor Field Effect Transistor), and wherein a ground voltage is applied to a lower power supply terminal of each of the first inverter and the second inverter.