Patent application number | Description | Published |
20090040088 | A/d Converter and A/D Conversion Method - In an A/D converter provided with an A/D converter circuit | 02-12-2009 |
20100097136 | A/D CONVERTER AND A/D CONVERSION METHOD - In an A/D converter provided with an A/D converter circuit | 04-22-2010 |
20100117879 | A/D CONVERTER AND A/D CONVERSION METHOD - An A/D converter which converts an analog input signal into a digital output signal by performing time-divisional parallel processings on the analog input signal using first and second pipeline type unit A/D converters ( | 05-13-2010 |
20100188151 | OPERATIONAL AMPLIFIER AND PIPELINE AD CONVERTER - A differential voltage interconnect (W | 07-29-2010 |
20100270648 | SEMICONDUCTOR INTEGRATED CIRCUIT, D-A CONVERTER DEVICE, AND A-D CONVERTER DEVICE - A semiconductor integrated circuit has a plurality of capacitor cells, and each capacitor cell has an upper electrode and a lower electrode. These electrodes are respectively connected to an upper electrode wiring and a lower electrode. When, for example, the upper electrode is connected to the upper electrode wiring and the electrode wiring is located at a side of the lower electrode of another capacitor cell or a side of the lower electrode wiring connecting these electrodes, a shield wiring is provided between the upper electrode wiring and the adjacently-located lower electrode of the other capacitor cell or between the upper electrode wiring and the adjacently-located lower electrode wiring. Thus, with this shield wiring, the capacitance coupling between each wiring of the capacitor cells and each upper electrode or each lower electrode of the capacitor cells are effectively suppressed. | 10-28-2010 |
20110175759 | OPERATIONAL AMPLIFIER AND PIPELINE AD CONVERTER - A differential voltage interconnect (W | 07-21-2011 |
20110254125 | SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit according to the present invention is equipped with a plurality of analog macros having comb capacitors ( | 10-20-2011 |
20110298642 | CURRENT TRIMMING CIRCUIT AND A/D CONVERTER INCLUDING CURRENT TRIMMING CIRCUIT - A current is generated from a reference voltage using an operational amplifier. The current is mirrored by a current mirror circuit to obtain a reference current. For example, the current mirror circuit includes a plurality of PMOS transistors. Based on the result of measurement of the reference current by an external monitor, the connection destination of the gate voltage of each of a plurality of mirror destination current source transistors is switched by an analog switch circuit between a power supply and the gate of a mirror source current source transistor, thereby changing the number of mirror destination current source transistors which are turned on, to change a current minor ratio. Thus, the current can be trimmed. | 12-08-2011 |