发明名称 |
Digital to analog converter using matrix of current sources |
摘要 |
A semiconductor circuit having an improved current switching function is disclosed. The circuit comprises at least one current switch unit including a current source, a current output node, a field effect transistor connected between the current output node and the current source, an inverting amplifier having an output supplied to a gate of the field effect transistor and an input connected to the junction point of the current source and the field effect transistor and means for controlling operation of the amplifier.
|
申请公布号 |
US4393370(A) |
申请公布日期 |
1983.07.12 |
申请号 |
US19810258711 |
申请日期 |
1981.04.29 |
申请人 |
NIPPON ELECTRIC CO., LTD. |
发明人 |
HAREYAMA, KYUICHI |
分类号 |
H03M1/74;H03K17/041;H03M1/00;(IPC1-7):H03K13/02 |
主分类号 |
H03M1/74 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|