| 摘要 |
PROBLEM TO BE SOLVED: To obtain an MOS multiplier circuit which can be formed on a semiconductor integrated circuit by connecting plural quadritail cells in the state of arranging their output pair reverse to each other. SOLUTION: Transistors M1 to M4 constitute a first quadritail cell and transistors M5 to M8 constitute a second quadritail cell to constitute a multiplier cell. The two quadritail cells whose outputs are cross-connected are driven by the differential output current of a MOS differential pair respectively consisting of transistors M13 and M14. When an input voltage VY is a non- signal, both of the output current of the first quadritail cell and that of the second quadritail cell are linear with respect to the input voltage VX. Since a multiplier cell consists of the two quadritail cell whose outputs are cross- connected, the MOS multiplier circuit which can constitute the multiplier cell and a required input circuit of only N-channel transistor is realized. |
