| 摘要 |
PURPOSE:To attain a low level of power consumption by using an NOR or NAND circuit consisting of a CMOS circuit where an analog signal is supplied to the input of one side with a control signal supplied to the input of the other side respectively. CONSTITUTION:When no memory information is read out, a control signal E is set at a high level with a control signal S of the other side set at a low level respectively. A p channel MOSFETQ2 of an NOR gate NOR1 constituting an amplifying circuit Amp is turned off to prevent the flow of a through current. When the memory information is read out, the signal E is set at a low level. While the signal S is temporarily set at a high level synchronously with the signal E. Then a microanalog signal Vin is amplified via a coupling capacity C to obtain an output Vout. It is also possible to use an NAND gate circuit NAND in place of the circuit Amp.
|
