摘要 |
A digital-to-analog converter of the current-adding kind includes n input buffer circuits to which the bits of the digital signal are applied in parallel, a first ladder resistor network having n resistors connected in series to which complementary outputs of the input buffer circuit are connected, a second ladder resistor network for dividing output terminal voltages from the first ladder resistor network into 2(2n-1) voltages, (2n-1) switching circuits having inputs connected to voltage dividing points of the second resistor network, and a common summing resistor connected to the outputs of the switching circuits to add currents supplied thereto, thereby providing an analog voltage having a level corresponding to the numerical value of the digital input signal. |
申请人 |
SONY CORP., TOKIO/TOKYO, JP |
发明人 |
TAKEDA, MASASHI, ISEHARA-SHI KANAGAWA-KEN, JP;IWASA, MASARU, SAGAMIHARA-SHI KANAGAWA-KEN, JP |