Invention Grant
US07042384B2 Differential amplifier device, 2-stage amplifier device, and analog/digital converter device
有权
差分放大器器件，2级放大器器件和模拟/数字转换器器件
- Patent Title: Differential amplifier device, 2-stage amplifier device, and analog/digital converter device
- Patent Title (中): 差分放大器器件，2级放大器器件和模拟/数字转换器器件
-
Application No.: US11106958Application Date: 2005-04-15
-
Publication No.: US07042384B2Publication Date: 2006-05-09
- Inventor: Yasuhide Shimizu , Shigemitsu Murayama , Kohhei Kudoh
- Applicant: Yasuhide Shimizu , Shigemitsu Murayama , Kohhei Kudoh
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sonnenschein Nath & Rosenthal LLP
- Priority: JPP2004-126073 20040421; JPP2005-032300 20050208
- Main IPC: H03M1/12
- IPC: H03M1/12
Abstract:
A differential amplifier device is disclosed wherein the device comprises a differential amplifier circuit, a load circuit connected to the differential amplifier circuit; and a change-over switch connected to the load circuit for changing a gain of the differential amplifier circuit by switching between a full load where a whole of the load circuit is set to be the load of the differential amplifier circuit and a partial load where a part of the load circuit is set to be the load of the differential amplifier circuit, wherein the load circuit is configured to amplify an input signal and an output signal of the differential amplifier circuit in the full load.
Public/Granted literature
- US20050248479A1 Differential amplifier device, 2-stage amplifier device, and analog/digital converter device Public/Granted day:2005-11-10
Information query
