| Patent Number |
Title Of Patent |
Date Issued |
| 8139330 |
Semiconductor integrated circuit |
March 20, 2012 |
| A semiconductor integrated circuit includes a first and second power supply domain circuits having a first and second power supply terminals, respectively. An internal signal propagation line propagates a signal from a circuit of the first power supply domain circuit to that of the s |
| 7528758 |
Flash-type analog to digital conversion circuit for comparing an analog input voltage with a plu |
May 5, 2009 |
| A plurality of reference voltages are generated by a reference voltage generation circuit. A plurality of comparators is supplied respectively with an analog input voltage and any two reference voltages out of the plurality of reference voltages. A threshold voltage of each of the co |
| 7382302 |
A/D converter with voltage generation circuits |
June 3, 2008 |
| An A/D converter has a first voltage generation circuit, a second voltage generation circuit, a comparator, first and second switch circuits connected in series between an input terminal of an analog input voltage and an output terminal of the first voltage generation circuit, a first |
| 7332941 |
Analog switch circuit and sample-and-hold circuit including the same |
February 19, 2008 |
| First and second analog switches are connected in series between first and second nodes. One terminal of a third analog switch is connected to a series connection node of the first and second analog switches. The other terminal of the third analog switch is supplied with a second voltage |
| 7307822 |
Semiconductor integrated circuit apparatus |
December 11, 2007 |
| A semiconductor integrated circuit device is disclosed, which comprises power supply system circuits, in which power supply terminals and/or ground terminals are separated from each other between the power supply system circuits, an electrostatic discharge protecting circuit, an inte |
| 7265701 |
Analog to digital conversion circuit |
September 4, 2007 |
| A plurality of reference voltages are generated by a reference voltage generation circuit. A plurality of comparators is supplied respectively with an analog input voltage and any two reference voltages out of the plurality of reference voltages. A threshold voltage of each of the co |
| 7167031 |
Synchronizing circuit provided with hysteresis phase comparator |
January 23, 2007 |
| A synchronizing circuit includes a phase comparator having hysteresis characteristics and a dead zone, and configured to generate a frequency division ratio control signal based on a phase difference between a first clock and a second clock. The circuit further includes a variable fr |
| 6570520 |
DA converter |
May 27, 2003 |
| Considering that MOS transistors on a common integrated circuit can be controlled in resistance ratio between them with a relatively high accuracy, a DA converter is improved in accuracy by replacing resistors required to be accurate with MOS transistors without inviting an increase |
| 6359510 |
Amplifier circuit |
March 19, 2002 |
| A balanced type DDA 1 is combined with a single end type DDA 2 to form a differential amplifier circuit 3 which is a balanced type DDA. The balanced type DDA 1 has four input terminals VPP, VPN, VNN and VNP which are input terminals of two differential input stages, and two output te |
